Usage share of web browsers

The usage share of web browsers.
Source: Median values from world wide summary table. Internet Explorer (52.33%; Usage by version number) Mozilla Firefox (26.34%; Usage by version number) Google Chrome (11.04%) Safari (5.03%) Opera (2.54%) Mobile browsers (3.49%)

The usage share of web browsers is the percentage of visitors to a group of websites that use a particular web browser. For example, when it is said that Internet Explorer has 51% usage share, it means that some version of Internet Explorer is used by 51% of visitors that visit a given set of sites.

1 Accuracy
- 1.1 Overestimation
- 1.2 Underestimation
2 Summary table
3 Historical usage share
4 Older reports
5 See also
6 References
7 External links

Accuracy

Measuring browser usage in the number of requests (page hits) made by each user agent can be misleading.

Overestimation

Not all requests are generated by a user, as a user agent can make requests at regular time intervals without user input. In this case the user's activity might be overestimated. Some examples:

A web browser that refreshes the webpage at a regular time interval.
A feed reader that requests the RSS or Atom feed at a regular time interval.
Extra files like CSS hacks and JavaScript hacks are often sent to Internet Explorer.
Gecko-based browsers (such as Firefox) can prefetch linked web pages, potentially increasing hits. Link prefetching in Gecko-based browsers is used on pages with enhanced markup, including Google search results.^[1]
A user who revisits a site shortly after changing or upgrading browsers may be double-counted under some methodologies; overall numbers at the time of a new version's release may be skewed.^[2]
Certain anti-virus products fake their user-agent to appear to be popular browsers. This is done to trick attack sites that might display clean content to the scanner, but not to the browser. The Register reported in June 2008 that traffic from AVG Linkscanner, using an IE6 user-agent, outstripped human link clicks by nearly 10 to 1. ^[3]
Many types of software, such as Web validators or crawlers, fetch web pages, and send fictitious user-agent strings to appear more like normal traffic.
Browsers such as Safari maintain a dashboard of frequently visited sites. This generates hits to those sites on browser start or at times on launch of a new tab, in order to update the thumbnail images.

Underestimation

It is also possible to underestimate the usage share by using the number of requests, for example:

A graphical browser typically results in more hits than a text browser, as it downloads files referred to by the HTML document (e.g., images, CSS, and JavaScript).
Many browsers and download managers spoof a different user agent string to the web server to prevent erroneous or malicious browser sniffing which could result in receiving broken or incompatible code, or being completely blocked, and thus increasing the statistics for other browsers (as an example, prior to version 9, the Opera web browser had "Identify as Internet Explorer" as the default user setting). Sometimes you can detect these spoofing browsers based on other things but some people do not do it. (An example is Internet Explorer Mobile which ships in Windows Mobile 6.1.4 and 6.5 with the default user agent string as IE6 Windows XP. Internet Explorer Mobile can be identified by looking at the other HTTP Headers)
Text-based and audio-based browsers do not download any web bugs at all.
Gecko-based browsers since Firefox 1.5 and Opera use fast Document Object Model (DOM) caching. JavaScript is only executed on pageload from net or disk cache, but not if it is loaded from DOM cache. This can have an impact on JavaScript based tracking of browser statistics.^[4]
Some browser extensions and security programs (such as the popular Firefox extension NoScript) block JavaScript, Adobe Flash, Applets and some forms of HTML (HTML blocked through ClearClick) for non-whitelisted sites. This may also affect JavaScript based tracking of browser statistics.
Many browsers accessing a site via one proxy are apt to be counted as only one access if the proxy caches the result; it is usual for browsers on mobile phones in particular to access the web via proxies (many of which violate HTTP's specifications for proxies; even if a web bug is designed to work despite proxying, the proxies run by mobile operators may well mislead it).
While most browsers generate additional page hits by refreshing web pages when user navigates back through page history, some browsers (such as Opera) reuse cached content without resending requests to the server.^[5]^[6]
Generally, the more faithfully a browser implements HTTP's cache specifications, the more it will be under-reported relative to browsers that implement those specifications poorly.^[6]
Plug-ins may change, or append text to, the User Agent string. This can lead to Browser Detection flaws.
User Agents are not guaranteed to be a certain format. As an example of the inconsistency, almost every User Agent pretends to be Mozilla 5.0.
Some ISPs, mainly mobile phone carriers, have begun stripping the user agent strings.^[7]

Summary table

The following table summarizes the usage share of browsers for July 2010.

Source	Internet Explorer	Firefox	Chrome	Safari	Opera
Net Applications	60.74%	23.91%	7.16%	5.09%	2.45%
W3Counter^{[Note 1]}	44.4%	31.4%	9.8%	1.9%	2.1%
Stat Counter	52.68%	30.69%	9.88%	4.07%	1.91%
StatOwl^{[Note 2]}	61.73%	21.66%	6.95%	8.94%	0.36%
Clicky	49.26%	30.88%	10.53%	7.87%	1.26%
Mean	53.76%	27.71%	8.86%	5.57%	1.62%
Median	52.68%	30.69%	9.80%	5.09%	1.91%

↑ W3Counter is not affiliated with the W3C.
↑ 92% of sites monitored by StatOwl serve predominantly United States market.

Historical usage share

Net Applications (2004 Q4 to present)

Usage share of web browsers history from 2004 Q4 to 2010 Q2 according to Net Applications

Usage share of (non-IE) web browsers according to Net Applications data:^[10]

Firefox	Chrome	Safari	Opera
Other	Netscape	Opera Mini

Netapplications bases its usage share mainly on the usage statistics of 40,000 websites having around 160 million unique visitors.

On 2009-08-01, Net Applications began weighting its raw data based on the number of internet users in the countries concerned, using data from the CIA ; the changes were applied retroactively to older data.^[11] The table below uses weighted data from 2007 Q4 onwards.

**Global usage share data from: Net Applications**
Period	Internet Explorer	Firefox	Chrome	Safari	Opera	Netscape	Mozilla
2010 Q2	60.01%	24.24%	7.00%	4.78%	2.33%	0.49%	0.12%
2010 Q1	61.43%	24.40%	5.67%	4.55%	2.37%	0.52%	0.15%
2009 Q4	63.67%	24.46%	4.04%	4.41%	2.29%	0.32%	0.11%
2009 Q3	66.80%	23.06%	2.86%	4.13%	2.07%	0.50%	0.09%
2009 Q2	68.06%	23.00%	2.13%	3.67%	2.05%	0.68%	0.06%
2009 Q1	69.13%	22.67%	1.56%	3.58%	2.18%	0.51%	0.06%
2008 Q4	71.99%	20.78%	1.16%	3.11%	2.15%	0.41%	0.07%
2008 Q3	74.93%	19.07%	0.37%	2.73%	2.06%	0.43%	0.07%
2008 Q2	76.24%	18.16%		2.73%	1.97%	0.48%	0.08%
2008 Q1	77.83%	16.86%		2.65%	1.84%	0.41%	0.13%
2007 Q4	79.16%	15.84%		2.39%	1.78%	0.50%	0.09%
2007 Q3	78.85%	14.69%		4.80%	0.51%	0.76%	0.11%
2007 Q2	78.76%	14.92%		4.66%	0.46%	0.83%	0.15%
2007 Q1	79.38%	14.35%		4.70%	0.50%	0.77%	0.19%
2006 Q4	80.69%	13.50%		4.06%	0.56%	0.86%	0.23%
2006 Q3	82.88%	11.89%		3.30%	0.62%	0.88%	0.26%
2006 Q2	84.03%	10.67%		3.25%	0.57%	0.98%	0.32%
2006 Q1	85.01%	9.77%		3.10%	0.53%	1.09%	0.36%
2005 Q4	85.88%	9.00%		2.80%	0.54%	1.25%	0.43%
2005 Q3	86.74%	7.97%		2.24%	0.55%	1.92%	0.48%
2005 Q2	87.24%	8.08%		1.89%	0.52%	1.62%	0.59%
2005 Q1	89.02%	6.17%		1.70%	0.49%	1.89%	0.67%
2004 Q4	91.35%	3.66%		1.50%	0.51%	2.09%	0.80%
Period	Internet Explorer	Firefox	Chrome	Safari	Opera	Netscape	Mozilla

W3Counter (May 2007 to present)

This site counts the last 15,000 page views from each of approximately 30,000 websites. This limits the influence of sites with more than 15,000 visitors on the usage statistics.

**Global Web Stats from W3Counter**
Date	Internet Explorer	Firefox	Chrome	Safari	Opera	Other Mozilla
July 2010	44.4%	31.4%	9.8%	1.9%	2.1%
June 2010	45.5%	31.8%	9.2%	3.5%	2.1%
May 2010	45.7%	32.2%	8.4%	5.3%	2.0%
April 2010	46.9%	31.6%	8.0%	5.4%	2.1%
March 2010	47.9%	32.3%	7.4%	5.5%	2.1%
February 2010	48.7%	32.1%	6.8%	5.6%	2.1%
January 2010	49.7%	32.3%	6.3%	5.4%	2.1%
December 31, 2009	50.3%	32.3%	5.5%	5.1%	2.1%
November 30, 2009	51.2%	32.0%	4.7%	5.2%	1.2%
October 31, 2009	51.3%	32.1%	4.2%	5.1%	2.0%
September 30, 2009	51.8%	31.9%	3.7%	5.0%	2.0%
August 31, 2009	52.4%	32.1%	3.6%	4.9%	1.9%
July 31, 2009	53.1%	31.7%	3.3%	4.6%	1.8%	1.1%
June 30, 2009	57.1%	31.6%		3.2%	2.0%	1.0%
May 31, 2009	57.5%	31.4%		3.1%	2.0%	1.0%
April 30, 2009	57.6%	31.6%		2.9%	2.0%	1.0%
March 31, 2009	57.8%	31.5%		2.8%	2.0%	1.1%
February 28, 2009	58.1%	31.3%		2.7%	2.0%	1.1%
January 31, 2009	58.4%	31.1%		2.7%	2.0%	1.1%
December 31, 2008	58.6%	31.1%		2.9%	2.1%	1.1%
November 30, 2008	59.0%	30.8%		3.0%	2.0%	1.0%
October 31, 2008	59.4%	30.6%		3.0%	2.0%	1.0%
September 30, 2008	57.3%	32.5%		2.7%	2.0%	1.0%
August 31, 2008	58.7%	31.4%		2.4%	2.1%	0.9%
July 31, 2008	60.9%	29.7%		2.4%	2.0%	1.0%
June 30, 2008	61.7%	29.1%		2.5%	2.0%	0.9%
May 31, 2008	61.9%	28.9%		2.7%	2.0%	0.9%
April 30, 2008	62.0%	28.8%		2.8%	2.0%	0.9%
March 31, 2008	62.0%	28.8%		2.8%	2.0%	0.9%
February 29, 2008	62.0%	28.7%		2.8%	2.0%	0.9%
January 31, 2008	62.2%	28.7%		2.7%	2.0%	0.52%
December 1, 2007	62.8%	28.0%		2.6%	2.0%	0.56%
November 10, 2007	63.0%	27.8%		2.5%	2.0%	0.59%
October 30, 2007	65.5%	26.3%		2.3%	1.8%	0.59%
September 20, 2007	66.6%	25.6%		2.1%	1.8%	0.61%
August 30, 2007	66.7%	25.5%		2.1%	1.8%	0.62%
July 30, 2007	66.9%	25.1%		2.2%	1.8%	0.67%
June 30, 2007	66.9%	25.1%		2.3%	1.8%	0.70%
May 30, 2007	67.1%	24.8%		2.4%	1.8%	0.67%
Date	Internet Explorer	Firefox	Chrome	Safari	Opera	Other Mozilla

StatCounter (July 2008 to present)

Statcounter statistics are directly derived from hits (not unique visitors) from 3 million sites using Statcounter totalling more than 15 billion hits per month ^[12]. No artificial weightings are used.

**Global stats from StatCounter (Top 5 browsers)**
Date	Internet Explorer	Firefox	Chrome	Safari	Opera	Netscape
August 2010	51.34%	31.09%	10.76%	4.23%	1.88%
July 2010	52.68%	30.69%	9.88%	4.09%	1.91%
June 2010	52.86%	31.15%	9.24%	4.07%	1.91%
May 2010	52.77%	31.64%	8.61%	4.14%	1.96%
April 2010	53.26%	31.74%	8.06%	4.23%	1.82%
March 2010	54.44%	31.27%	7.29%	4.16%	1.97%
February 2010	54.50%	31.83%	6.71%	4.08%	1.97%
January 2010	55.25%	31.64%	6.04%	3.76%	2.00%
December 2009	55.72%	31.97%	5.45%	3.48%	2.06%
November 2009	56.57%	32.21%	4.66%	3.67%	2.02%
October 2009	57.96%	31.82%	4.17%	3.47%	1.88%
September 2009	58.37%	31.34%	3.69%	3.28%	2.62%
August 2009	58.69%	31.28%	3.38%	3.25%	2.67%
July 2009	60.11%	30.50%	3.01%	3.02%	2.64%
June 2009	59.49%	30.26%	2.80%	2.91%	3.46%
May 2009	62.09%	28.75%	2.42%	2.65%	3.23%
April 2009	61.88%	29.67%	2.07%	2.75%	2.96%
March 2009	62.52%	29.40%	1.73%	2.73%	2.94%
February 2009	64.43%	27.85%	1.52%	2.59%	2.95%
January 2009	65.41%	27.03%	1.38%	2.57%	2.92%
December 2008	67.84%	25.23%	1.21%	2.41%	2.83%
November 2008	68.14%	25.27%	0.93%	2.49%	3.01%
October 2008	67.68%	25.54%	1.02%	2.91%	2.69%
September 2008	67.16%	25.77%	1.03%	3.00%	2.86%
August 2008	68.91%	26.08%		2.99%	1.83%	0.07%
July 2008	68.57%	26.14%		3.30%	1.78%	0.07%

StatCounter Europe (July 2008 to present)

**European stats from StatCounter (Top 5 browsers)**
Date	Internet Explorer	Firefox	Opera	Chrome	Safari
August 2010	42.01%	37.94%	4.33%	10.81%	4.11%
July 2010	42.61%	37.98%	4.55%	10.13%	3.89%
June 2010	43.18%	38.09%	4.40%	9.60%	3.90%
May 2010	43.32%	38.61%	4.41%	8.89%	3.88%
April 2010	44.10%	38.72%	4.15%	8.27%	3.80%
March 2010	45.32%	38.28%	4.32%	7.36%	3.76%
February 2010	45.50%	38.99%	4.29%	6.52%	3.67%
January 2010	44.91%	39.86%	4.33%	5.78%	3.68%
December 2009	44.84%	40.8%	4.44%	5.06%	3.40%
November 2009	46.57%	40.12%	4.27%	4.43%	3.52%
October 2009	47.78%	39.87%	4.05%	3.99%	3.37%
September 2009	46.44%	39.26%	6.64%	3.59%	3.14%
August 2009	46.01%	39.62%	7.12%	3.36%	2.95%
July 2009	46.69%	39.70%	6.84%	3.05%	2.81%
June 2009	45.97%	38.79%	8.69%	2.78%	2.64%
May 2009	46.65%	38.59%	8.75%	2.49%	2.52%
April 2009	47.89%	39.04%	7.63%	2.05%	2.53%
March 2009	49.13%	38.54%	7.34%	1.73%	2.43%
February 2009	50.29%	37.69%	7.29%	1.49%	2.38%
January 2009	50.48%	37.71%	7.25%	1.38%	2.30%
December 2008	51.84%	36.70%	7.35%	1.25%	2.25%
November 2008	55.08%	33.74%	7.77%	0.91%	2.30%
October 2008	56.52%	33.41%	6.38%	0.98%	2.52%
September 2008	56.35%	33.77%	6.20%	1.04%	2.45%
August 2008	58.31%	35.53%	3.49%		2.47%
July 2008	58.19%	35.52%	3.69%		2.37%

StatOwl.com (September 2008 to present)

**Global usage share data from StatOwl.com**
Period	Internet Explorer	Mozilla / Firefox	Chrome	Safari	Opera	Gecko	Netscape Navigator
August 2010	62.66%	20.94%	6.83%	8.83%	0.35%	0.14%
July 2010	61.73%	21.66%	6.95%	8.94%	0.36%
June 2010	63.37%	21.26%	6.24%	8.52%	0.33%
May 2010	64.17%	21.12%	5.59%	8.31%	0.37%
April 2010	64.55%	21.35%	5.23%	8.12%	0.40%
March 2010	66.34%	19.90%	4.39%	8.59%	0.31%
February 2010	66.99%	19.48%	3.98%	9.00%	0.24%	0.06%
January 2010	66.33%	20.31%	3.87%	8.94%	0.26%	0.06%
December 2009	66.12%	20.82%	3.51%	8.73%	0.30%	0.07%
November 2009	67.74%	20.15%	2.88%	8.56%	0.28%	0.10%
October 2009	68.38%	20.32%	2.56%	8.09%	0.27%	0.14%
September 2009	67.25%	21.12%	2.41%	8.46%	0.28%	0.21%
August 2009	68.37%	21.32%	2.21%	7.29%	0.28%	0.23%
July 2009	69.29%	21.06%	2.05%	6.77%	0.30%	0.24%
June 2009	71.44%	19.48%	1.93%	6.30%	0.33%	0.22%
May 2009	71.35%	20.26%	1.64%	5.95%	0.31%	0.21%
April 2009	71.38%	20.46%	1.43%	5.80%	0.31%	0.19%
March 2009	72.03%	20.00%	1.19%	5.91%	0.30%		0.10%
February 2009	74.04%	18.64%	0.97%	5.57%	0.27%		0.10%
January 2009	73.05%	19.39%	0.96%	5.72%	0.29%		0.12%
December 2008	70.89%	20.87%	0.95%	6.32%	0.33%		0.13%
November 2008	72.07%	19.78%	0.68%	6.57%	0.29%		0.13%
October 2008	73.45%	18.88%	0.57%	6.22%	0.26%		0.16%
September 2008	74.53%	18.14%	0.52%	5.98%	0.22%		0.17%

Wikimedia (April 2009 to present)

Wikimedia squid reports are based on server logs of about 4 billion page requests per month, based on the user agent information that accompanied the requests.^[13] These server logs cover requests to the following Wikimedia Foundation projects: Wikipedia, Wikimedia Commons, Wiktionary, Wikibooks, Wikiquote, Wikisource, Wikinews, Wikiversity and others.^[14]

**Usage share data from Wikimedia visitor log analysis report**
Period	Internet Explorer	Firefox	Chrome	Safari	Opera	Mozilla
June 2010	47.50%	30.90%	7.39%	4.95%	3.43%	0.59%
May 2010	48.25%	30.87%	6.93%	4.99%	3.46%	0.62%
April 2010	48.96%	30.84%	6.37%	5.09%	3.40%	0.69%
March 2010	50.43%	30.44%	5.75%	5.14%	3.30%	0.62%
February 2010	50.29%	30.96%	5.28%	5.27%	3.29%	0.60%
January 2010	51.01%	30.85%	4.81%	5.13%	3.18%	0.56%
December 2009	52.24%	30.45%	4.34%	5.14%	3.08%	0.57%
November 2009	54.43%	29.96%	3.73%	4.96%	2.82%	0.63%
October 2009	54.72%	30.17%	3.41%	4.82%	2.76%	0.65%
September 2009	55.77%	29.78%	3.12%	4.72%	2.62%	0.67%
August 2009	55.60%	30.25%	2.97%	4.57%	2.97%	0.71%
July 2009	54.55%	31.52%	2.77%	4.51%	2.38%	0.70%
June 2009	56.35%	30.82%	2.45%	4.04%	2.61%	0.64%
May 2009	57.30%	30.43%	2.28%	3.76%	2.65%	0.66%
April 2009	57.37%	30.71%	1.93%	3.86%	2.57%	0.68%

Clicky (Late September 2009 to present)

**Global usage share data from GetClicky.com**
Period	Internet Explorer	Firefox	Chrome	Safari	Opera	Mozilla
August 2010	48.23%	30.82%	11.22%	8.24%	1.31%	0.16%
July 2010	49.26%	30.88%	10.53%	7.87%	1.26%	0.18%
June 2010	49.44%	31.16%	10.30%	7.64%	1.25%	0.20%
May 2010	49.03%	32.12%	9.53%	7.73%	1.34%	0.24%
April 2010	48.90%	32.73%	8.94%	7.81%	1.39%	0.22%
March 2010	49.91%	32.37%	8.20%	7.89%	1.40%	0.21%
February 2010	49.92%	32.80%	7.54%	8.09%	1.41%	0.23%
January 2010	50.71%	32.89%	6.85%	7.79%	1.51%	0.23%
December 2009	50.87%	33.40%	6.17%	7.70%	1.58%	0.25%
November 2009	52.21%	32.97%	5.15%	7.80%	1.55%	0.31%
October 2009	53.10%	32.71%	4.66%	7.68%	1.45%	0.37%
September 2009^{[Note 1]}	54.58%	31.96%	4.25%	7.44%	1.34%	0.41%

↑ The September average involves only data from September 21st onward as this is when data was first collected.

Older reports

TheCounter.com (2000 to 2009)

Usage share of web browsers history from 2000 to ~April 2009 according to TheCounter.com.

TheCounter.com identifies sixteen versions of six browsers (Internet Explorer, Firefox, Safari, Opera, Netscape, and Konqueror). Other browsers are categorised as either ‘Netscape compatible’ (including Google Chrome, which may also be categorized as 'Safari' due to its 'Webkit' subtag) or ‘unknown’. Internet Explorer 8 is identified as Internet Explorer 7. Monthly data includes all hits from 2008-02-01 until the end of the month concerned. More than the exact browser type, this data identifies the underlying web rendering engine used by various browsers, and the table below aggregates them in the same column.

**Global usage share data from TheCounter.com (global statistics)**
Period	Internet Explorer	Netscape / Mozilla / Firefox	Safari	Opera	Netscape Navigator	Sources
2009 Q4	66.42%	21.13%	10.05%	1.00%	0.05%	Oct, Nov, Dec
2009 Q3	69.07%	20.59%	8.10%	0.89%	0.06%	Jul, Aug, Sep
2009 Q2	70.31%	20.12%	6.44%	0.94%	0.06%	Apr, May, Jun
2009 Q1	71.25%	20.01%	5.47%	0.92%	0.08%	Jan, Feb, Mar
2008 Q4	74.24%	18.66%	4.52%	0.89%	0.07%	Oct, Nov, Dec
2008 Q3	76.33%	17.97%	3.76%	0.84%	0.07%	Jul, Aug, Sep
2008 Q2	78.30%	16.36%	3.41%	0.81%	0.06%	Apr, May, Jun
2008 Q1	78.80%	15.87%	3.32%	0.79%	0.06%	Jan, Feb, Mar
2007 Q4	81.14%	13.81%	3.21%	0.67%	0.06%	Oct, Nov, Dec
2007 Q3	81.63%	13.49%	3.00%	0.66%	0.06%	Jul, Aug, Sep
2007 Q2	82.97%	12.41%	2.87%	0.64%	0.06%	Apr, May, Jun
2007 Q1	83.69%	11.57%	2.92%	0.57%	0.06%	Jan, Feb, Mar
2006 Q4	84.11%	11.13%	2.80%	0.60%	0.05%	Nov, Dec
2006 Q3	84.48%	10.56%	2.27%	0.73%	0.06%	Jul, Aug, Sep
2006 Q2	86.32%	9.03%	1.89%	0.70%	0.05%	Apr, May, Jun
2006 Q1	90.01%	6.77%	1.40%	0.58%	0.05%	Jan, Feb, Mar
2005 Q4	87.25%	8.60%	1.83%	0.71%	0.07%	Oct, Nov, Dec
2005 Q3	87.58%	8.42%	1.60%	0.67%	0.07%	Jul, Aug, Sep
2005 Q2	90.90%	6.02%	0.99%	0.51%	0.09%	Apr, May, Jun
2005 Q1	90.77%	5.73%	1.00%	0.54%	0.11%	Jan, Feb, Mar
2004 Q4	90.98%	5.10%	0.77%	0.68%	0.18%	Oct, Nov, Dec
2004 Q3	92.70%	3.57%	0.73%	0.65%	0.20%	Jul, Aug, Sep
2004 Q2	95.04%	2.37%	0.67%	0.51%	0.32%	Apr, May, Jun
2004 Q1	94.28%	2.70%		0.52%	0.36%	Jan, Feb, Mar
2003 Q4						Oct, Nov, Dec
2003 Q3						Jul, Aug, Sep
2003 Q2	94.43%	2.22%		0.66%	1.45%	Apr, May, Jun
2003 Q1	94.18%	2.15%		0.65%	1.77%	Jan, Feb, Mar
2002 Q4	93.94%	1.67%		0.83%	2.31%	Oct, Nov, Dec
2002 Q3	93.32%	1.36%		0.94%	3.04%	Jul, Aug, Sep
2002 Q2	92.47%	1.13%		0.82%	4.13%	Apr, May, Jun
2002 Q1	92.40%	0.93%		0.52%	4.67%	Jan, Feb, Mar
2001 Q4	90.83%	0.71%		0.36%	5.23%	Oct, Nov, Dec
2001 Q3	88.43%	0.26%		0.31%	6.49%	Jul, Aug, Sep
2001 Q2	87.99%	0.27%		0.28%	7.46%	Apr, May, Jun
2001 Q1	86.80%	0.30%		0.22%	9.84%	Jan, Feb, Mar
2000 Q4	83.95%	0.14%		0.14%	12.61%	Oct, Nov, Dec
2000 Q3	82.76%	0.04%		0.14%	14.35%	Jul, Aug, Sep
2000 Q2	80.30%	0.02%		0.12%	17.54%	Apr, May, Jun
2000 Q1	79.09%	0.00%		0.13%	19.25%	Jan, Feb, Mar
Period	Internet Explorer	Netscape / Mozilla / Firefox	Safari	Opera	Netscape Navigator	Sources

OneStat.com (April 2002 to March 2009)

**Global usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla / Firefox	Safari	Chrome	Opera	Netscape	Netscape Navigator
March 2009	79.59%	15.59%	2.65%	0.86%	0.54%	0.31%
November 2008	81.36%	14.67%	2.42%	0.54%	0.55%	0.32%
February 2008	83.27%	13.76%	2.18%		0.55%	0.14%
June 2007	84.66%	12.72%	1.79%		0.61%	0.11%
January 2007	85.81%	11.69%	1.64%		0.58%	0.13%
November 2006	85.24%	12.15%	1.61%		0.69%	0.11%
October 2006	85.85%	11.49%	1.61%		0.69%	0.12%
July 2006	83.05%	12.93%	1.84%		1.00%	0.16%
May 2006	85.17%	11.79%	2.02%		0.79%	0.15%
January 2006	85.82%	11.23%	1.88%		0.77%	0.16%
November 2005	85.45%	11.51%	1.75%		0.77%	0.26%
April 2005	86.63%	8.69%	1.26%		1.03%	1.08%
February 2005	87.28%	8.45%	1.21%		1.09%	1.11%
November 2004	88.90%	7.35%	0.91%		1.33%
May 2004	93.9 %	2.1 %	0.71%		1.02%
January 2004	94.8 %	1.8 %	0.48%		0.8 %
July 2003	95.4 %	1.6 %	0.25%		0.6 %	1.9 %	0.6 %
February 2003	95.2 %	1.2 %	0.11%		0.7 %	1.9 %	1.0 %
December 2002	95.0 %	1.1 %			0.8 %	1.9 %	1.1 %
September 2002	94.9 %	0.8 %			0.9 %	1.8 %	1.2 %
June 2002	95.3 %	0.4 %			0.7 %	1.5 %	1.9 %
April 2002	96.6 %				0.5 %	0.7 %	2.1 %

**USA usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla / Firefox	Safari	Chrome	Opera	Netscape
March 2009	72.69%	20.40%	4.53%	1.05%	0.38%	0.49%
November 2008	75.54%	18.74%	3.95%	0.62%	0.39%	0.50%
June 2007	75.69%	19.65%	3.77%		0.61%	0.17%
January 2007	78.13%	16.11%	3.68%		0.73%	0.18%

**Canadian usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla / Firefox	Safari	Chrome	Opera	Netscape
March 2009	65.55%	23.09%	7.36%	1.32%	0.75%	0.56%
November 2008	69.67%	20.38%	7.56%	0.92%	0.76%	0.56%
June 2007	75.76%	16.47%	5.72%		0.69%	0.13%
January 2007	79.00%	14.13%	4.70%		0.71%	0.14%

**UK usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla / Firefox	Safari	Chrome	Opera	Netscape
March 2009	80.91%	15.16%	1.94%	0.85%	0.60%	0.36%
November 2008	83.77%	11.45%	1.76%	0.43%	0.60%	0.34%
June 2007	86.00%	11.22%	1.61%		0.53%	0.10%
January 2007	86.72%	10.86%	1.78%		0.49%	0.10%

**Australian usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla / Firefox	Safari	Chrome	Opera	Netscape
June 2007	66.42%	26.32%	1.86%		4.05%	0.24%
January 2007	65.71%	26.68%	1.77%		4.28%	0.24%

**French usage share data from OneStat.com (press releases)**
Period	Internet Explorer	Mozilla / Firefox	Safari	Chrome	Opera	Netscape
March 2009	71.57%	23.48%	2.90%	0.86%	0.54%	0.46%
November 2008	71.50%	23.45%	3.23%	0.59%	0.56%	0.51%

ADTECH (Europe, 2004 to Q4 2009)

**Europe usage share data from ADTECH (press releases)**
Period	Internet Explorer	Firefox	Safari	Chrome	Opera	Mozilla	Netscape
Q4 2009	63.6%	26.7%	3.6%	2.8%	1.7%	0.7%
Q1 2009	67.7%	25.3%	2.6%	1.0%	1.4%	1.1%
Q1 2008	76.2%	18.1%	1.7%		1.0%	2.6%
Q4 2007	76.0%	18.0%	1.6%		1.0%	2.9%
July 2007	77.5%	15.5%	1.6%		0.9%	3.9%
February 2007	77.34%	14.34%	1.63%		0.85%	5.11%
February–April 2006	83.36%	12.38%	1.67%		0.77%	0.82%	0.38%
September 2005	83.31%	12.41%	1.40%		0.90%	1.06%	0.61%
June 2005	85.10%	10.11%	1.34%		1.21%	1.05%	0.60%
March 2005	86.73%	8.96%			1.12%	1.14%	0.71%
February 2005	87.57%	7.85%			1.05%	1.26%	0.76%
January 2005	87.13%	7.43%			1.70%	1.33%	0.85%
November 30, 2004	89.47%	5.51%			1.01%	2.50%	0.92%
November 16, 2004	90.56%	4.56%			1.07%	2.38%	0.89%
September 2004	92.63%	2.91%			1.00%	2.10%	0.82%
August 2004	93.08%	2.15%			0.89%	2.18%	0.95%
July 2004	93.08%	1.64%			0.99%	2.62%	0.97%
January–April 2004	94.72%				0.73%	2.50%	1.49%

AT Internet Institute (Europe, July 2007 to June 2010)

AT Internet Institute was formerly known as XiTi.

Methodology: Only counts visits to local sites in 23 European countries and then averages the percentages for those 23 European countries independant of population size.

**Europe usage share data from AT Internet Institute (browsers barometer)**
Date	Internet Explorer	Netscape	Firefox	Opera	Safari	Chrome	Source
June 2010	53.8%		30.6%	2.4%	6.8%	5.7%	2010-6
March 2010	57.1%		29.6%	2.2%	5.2%	5.3%	2010-3
September 2009	62.0%		28.4%	2.2%	4.3%	2.8%	2009-11
April 2009	63.6%	0.6%	28.4%	2.2%	3.4%	1.7%	2009-5
March 2009	64.6%	0.6%	27.8%	2.2%	3.3%	1.4%
February 2009	65.6%	0.5%	27.4%	2.1%	3.0%	1.3%
January 2009	58.1%	0.6%	32.5%	4.1%	3.0%	1.5%	2009-1
December 2008	58.5%	0.6%	32.3%	4.5%	2.7%	1.3%	2009-1
November 2008	59.5%	0.6%	31.1%	5.1%	2.5%	1.1%	2008-12-22
October 2008	59.2%	0.6%	31.1%	5.4%	2.4%	1.1%	2008-12-22
September 2008	60.2%	0.4%	31.2%	4.8%	2.4%	1.0%	2008-10-10
August 2008	59.4%	0.3%	33.0%	4.5%	2.6%
July 2008	60.4%	0.3%	32.2%	4.5%	2.4%
June 2008	60.5%	0.3%	31.4%	5.1%	2.5%
May 2008	61.7%	0.4%	30.7%	4.7%	2.4%
April 2008	64.5%	0.5%	28.9%	3.6%	2.4%
March 2008	65.0%	0.5%	28.8%	3.3%	2.3%		2008-04-30
February 2008	65.6%	0.5%	28.5%	3.2%	2.2%
January 2008	66.1%	0.5%	28.0%	3.2%	2.1%
December 2007	66.1%	0.5%	28.0%	3.3%	2.0%
November 2007	66.9%	0.5%	27.3%	3.2%	1.9%
October 2007	67.5%	0.4%	27.0%	3.1%	1.8%
September 2007	66.6%	0.3%	27.7%	3.4%	1.8%		2007-10-30
July 2-8, 2007	66.5%	0.3%	27.8%	3.5%	1.7%		2007-07-18

WebSideStory (USA, February 1999 to June 2006)

**USA usage share data from: WebSideStory**
Date	Internet Explorer	Netscape / Mozilla	Firefox	Source
June 2006	86.64%		9.95%	July 19, 2006
January 5, 2006	87.63%		8.88%	Jan. 12, 2006
November 4, 2005	88.16%	1.61%	8.13%	November 10, 2005
September 23, 2005	88.46%	1.69%	7.86%	September 27, 2005
April 29, 2005	88.86%	2.23%	6.75%	May 10, 2005
February 18, 2005	89.85%	2.47%	5.69%	Feb. 28, 2005
January 14, 2005	90.28%	2.64%	4.95%
December 3, 2004	91.80%	2.83%	4.06%
November 5, 2004	92.89%	2.95%	3.03%
October 8, 2004	93.21%	3.05%	2.66%	December 13, 2004
June 4, 2004	95.48%	3.53%		December 13, 2004
August 26, 2002	95.97%	3.39%		August 28, 2002
October 25, 2001	89.03%	10.47%		October 31, 2001
April 25, 2001	86.61%	13.10%		May 1, 2001
February 21, 2001	87.71%	12.01%		February 22, 2001
June 18, 2000	86.08%	13.90%		February 22, 2001
August 2, 1999	75.31%	24.68%		August 9, 1999
April 6, 1999	68.75%	29.46%		April 7, 1999
March 1, 1999	66.90%	31.21%		March 2, 1999
February 8, 1999	64.60%	33.43%		February 22, 2001

GVU WWW user survey (January 1994 to October 1998)

**Usage share data from: GVU WWW user survey**
Date	Mosaic	Netscape Navigator	Internet Explorer	Source
October 1998		64%	32.2%	Primary Browser in 12 Months
April 1998		70%	22.7%	Browser Expected to Use in 12 Months
October 1997		59.67%	15.13%	Browser Expected to Use in 12 Months
April 1997		81.13%	12.13%	Browser Expected to Use in 12 Months
October 1996		80.45%	12.18%	Browser Expected to Use in 12 Months
April 1996		89.36%	3.76%	Browser Expected to Use in 12 Months
April 1995	9%	54%		Hal Berghel's Cybernautica - "A Web Monopoly"
October 1994	68%	18%		Result Graph - Browser
January 1994	97%			General Results Graphs

EWS Web Server at UIUC (1996 Q2 to 1998)

**Usage share data from: EWS Web Server at UIUC**
Date	Mosaic	Internet Explorer	Netscape Navigator	Source
1998 Q4		50.43%	46.87%	Oct 1998, Nov 1998, Dec 1998
1998 Q3		47.90%	48.97%	Jul 1998, Aug 1998, Sep 1998
1998 Q2		43.17%	53.57%	Apr 1998, May 1998, Jun 1998
1998 Q1		39.67%	57.63%	Jan 1998, Feb 1998, Mar 1998
1997 Q4		35.53%	62.23%	Oct 1997, Nov 1997, Dec 1997
1997 Q3		32.40%	64.93%	Jul 1997, Aug 1997, Sep 1997
1997 Q2	0.37%	27.67%	69.77%	Apr 1997, May 1997, Jun 1997
1997 Q1	0.60%	22.87%	74.33%	Jan 1997, Feb 1997, Mar 1997
1996 Q4	1.20%	19.07%	77.13%	Oct 1996, Nov 1996, Dec 1996
1996 Q3	2.47%	13.97%	80.37%	Jul 1996, Aug 1996, Sep 1996
1996 Q2	6.93%	9.60%	82.77%	Apr 1996, May 1996, Jun 1996

ZD Market Intelligence (USA, January 1997 to January 1998)

**Usage share data from: ZD Market Intelligence**
Date	Internet Explorer	Netscape Navigator	Source
January 1998	39%	54%	Behind the numbers: Browser market share
January 1997	21%	63%	Behind the numbers: Browser market share

Zona Research (USA, January 1997 to July 1998)

**Usage share data from: Zona Research**
Date	Internet Explorer	Netscape Navigator	Source
July 1998	45%	54%	Behind the numbers: Browser market share
September 1997	36%	62%
January 1997	28%	70%

AdKnowledge (January 1998 to June 1998)

**Usage share data from: AdKnowledge**
Date	Internet Explorer	Netscape Navigator	Source
June 1998	46%	52%	Behind the numbers: Browser market share
March 1998	42%	57%
January 1998	36%	61%

Dataquest (1995 to 1997)

**Usage share data from: Dataquest**
Date	Internet Explorer	Netscape Navigator	Source
1997	39.4%	57.6%	Browser wars: High price, huge rewards
1996	20%	73%
1995	2.9%	80.1%

International Data Corporation (USA, 1996 to 1997)

**Usage share data from: International Data Corporation**
Date	Internet Explorer	Netscape Navigator	Source
1997	23%	51%	Behind the numbers: Browser market share
1996	16%	55%	Behind the numbers: Browser market share

References

↑ "Google feature list". Google. http://www.google.com/help/features.html#prefetch. Retrieved 3 February 2010.
↑ Gregg Keizer (2008-06-23). "Firefox 3.0 boosts Mozilla's market share". Computerworld. IDG. http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9102398. Retrieved 2008-06-27.
↑ Cade Metz (2008-06-26). "AVG disguises fake traffic as IE6". The Register. http://www.theregister.co.uk/2008/06/26/avg_disguises_fake_traffic_as_ie6/. Retrieved 2008-09-05.
↑ Sheppy (1 Sep 2009). "Using Firefox 1.5 caching". Mozilla. https://developer.mozilla.org/en/docs/Using_Firefox_1.5_caching. Retrieved 3 February 2010.
↑ Pettersen, Yngve Nysæter (27. February 2007). "Introducing Cache Contexts, or: Why the browser does not know you are logged out". Opera Software. http://my.opera.com/yngve/blog/2007/02/27/introducing-cache-contexts-or-why-the. Retrieved 3 February 2010.
↑ ^6.0 ^6.1 Sharovatov, Vitaly (3 June 2008). "HTTP History Lists and Back Button". WordPress. http://sharovatov.wordpress.com/2008/06/03/http-history-lists-and-back-button/. Retrieved 3 February 2010.
↑ Butcher, Mike (September 21, 2007). "Vodafone in mobile web storm". TechCrunch Europe. http://eu.techcrunch.com/2007/09/21/vodafone-in-mobile-web-storm/. Retrieved 3 February 2010.
↑ "Browser Market Share for February, 2010". Net Applications. 2010-03-01. http://marketshare.hitslink.com/browser-market-share.aspx?qprid=0&qpcal=1&qptimeframe=M&qpsp=133. Retrieved 2010-03-01.
↑ "Country Level Weighting". Net Applications. 2009-08-01. http://marketshare.hitslink.com/weighting.aspx. Retrieved 2009-08-01.
↑ Statcounter statistics methodoly
↑ "Wikimedia Visitor Log Analysis Report - Browsers e.a.". http://stats.wikimedia.org/archive/squid_reports/2010-06/SquidReportClients.htm. Retrieved 6 August 2010.
↑ "Wikimedia Visitor Log Analysis Report - Requests by destination". http://stats.wikimedia.org/archive/squid_reports/2010-06/SquidReportRequests.htm. Retrieved 6 August 2010.

External links

Chuck Upsdell's Browser Stats lists web stats from many different stats sources and gives the approximate current usage share of the most popular layout engines.
W3Schools' Browser Statistics lists the web stats only from the W3 Schools site, which gives the approximate usage share of browsers among "people with an interest for web technologies."
Wikimedia's most recent squid report lists web stats for Wikipedia and its sister projects.

Web browsers

Comparison · History · List (for Unix) · Timeline · Usage share

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Other

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Offline reader‎

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