Editing Firefox (section)

=== 2010s ===
In January 2010, Lifehacker compared the performance of Firefox 3.5, Firefox 3.6, Google Chrome 4 (stable and Dev versions), Safari 4, and Opera (10.1 stable and 10.5 pre-alpha versions). Lifehacker timed how long browsers took to start and reach a page (both right after boot-up and after running at least once already), timed how long browsers took to load nine tabs at once, tested JavaScript speeds using Mozilla's Dromaeo online suite (which implements Apple's [[Browser speed test#Apple benchmarks|SunSpider]] and Google's V8 tests) and measured memory usage using Windows 7's process manager. They concluded that Firefox 3.5 and 3.6 were the fifth- and sixth-fastest browsers, respectively, on startup, 3.5 was third- and 3.6 was sixth-fastest to load nine tabs at once, 3.5 was sixth- and 3.6 was fifth-fastest on the JavaScript tests. They also concluded that Firefox 3.6 was the most efficient with memory usage followed by Firefox 3.5.<ref>{{cite news |url=https://lifehacker.com/5457242/browser-speed-tests-firefox-36-chrome-4-opera-105-and-extensions |title=Browser Speed Tests: Firefox 3.6, Chrome 4, Opera 10.5, and Extensions |last=Purdy |first=Kevin |date=January 26, 2010 |access-date=May 4, 2010 |publisher=Lifehacker |archive-url=https://web.archive.org/web/20100504143754/http://lifehacker.com/5457242/browser-speed-tests-firefox-36-chrome-4-opera-105-and-extensions |archive-date=May 4, 2010 |url-status=live}}</ref>

In February 2012, ''[[Tom's Hardware]]'' performance tested Chrome 17, Firefox 10, [[Internet Explorer 9]], Opera 11.61, and Safari 5.1.2 on Windows 7. ''Tom's Hardware'' summarized their tests into four categories: Performance, Efficiency, Reliability, and Conformance. In the performance category they tested [[HTML5]], [[Java (software platform)|Java]], [[JavaScript]], [[Document Object Model|DOM]], [[CSS 3]], [[Adobe Flash|Flash]], [[Silverlight]], and [[WebGL]] ([[WebGL 2]] is current as of version 51; and Java and Silverlight stop working as of version 52)—they also tested startup time and page load time. The performance tests showed that Firefox was either "acceptable" or "strong" in most categories, winning three categories (HTML5, HTML5 [[hardware acceleration]], and Java) only finishing "weak" in CSS performance. In the efficiency tests, ''Tom's Hardware'' tested memory usage and management. With this category, it determined that Firefox was only "acceptable" at performing light memory usage, while it was "strong" at performing heavy memory usage. In the reliability category, Firefox performed a "strong" amount of proper page loads. For the final category, conformance, it was determined that Firefox had "strong" conformance for JavaScript and HTML5. So in conclusion, ''Tom's Hardware'' determined that Firefox was the best browser for Windows 7 OS, but that it only narrowly beat Google Chrome.<ref>{{cite news |url=https://www.tomshardware.com/reviews/chrome-17-firefox-10-ubuntu,3129-17.html |title=Benchmark Analysis: Windows 7 and Ubuntu 11.10 |last=Overa |first=Adam |date=February 21, 2012 |newspaper=Tom's Hardware |access-date=April 8, 2012 |archive-date=September 13, 2012 |archive-url=https://archive.today/20120913011235/http://www.tomshardware.com/reviews/chrome-17-firefox-10-ubuntu,3129-17.html |url-status=live}}</ref>

In June 2013, ''Tom's Hardware'' again performance tested Firefox 22, Chrome 27, Opera 12, and [[Internet Explorer 10]]. They found that Firefox slightly edged out the other browsers in their "performance" index, which examined wait times, JavaScript execution speed, HTML5/CSS3 rendering, and hardware acceleration performance. Firefox also scored the highest on the "non-performance" index, which measured memory efficiency, reliability, security, and standards conformance, finishing ahead of Chrome, the runner-up. ''Tom's Hardware'' concluded by declaring Firefox the "sound" winner of the performance benchmarks.<ref name="Overa13">{{cite news |url=https://www.tomshardware.com/reviews/chrome-27-firefox-21-opera-next,3534-12.html |title=Chrome 27, Firefox 22, IE10, And Opera Next, Benchmarked |last=Overa |first=Adam |date=June 30, 2013 |newspaper=Tom's Hardware |access-date=May 2, 2014 |archive-date=July 3, 2013 |archive-url=https://archive.today/20130703091630/http://www.tomshardware.com/reviews/chrome-27-firefox-21-opera-next,3534-12.html |url-status=live}}</ref>

In January 2014, a benchmark testing the memory usage of Firefox 29, Google Chrome 34, and [[Internet Explorer 11]] indicated that Firefox used the least memory when a substantial number of tabs were open.<ref name="Brinkmann14">{{cite news |url=https://www.ghacks.net/2014/01/02/chrome-34-firefox-29-internet-explorer-11-memory-use-2014/ |title=Chrome 34, Firefox 29, Internet Explorer 11: Memory Use 2014 |last=Brinkmann |first=Martin |date=January 2, 2014 |newspaper=gHacks Technology News |access-date=May 2, 2014 |archive-url=https://web.archive.org/web/20140505225706/http://www.ghacks.net/2014/01/02/chrome-34-firefox-29-internet-explorer-11-memory-use-2014/ |archive-date=May 5, 2014 |url-status=live}}</ref>

In benchmark testing in early 2015 on a "high-end" Windows machine, comparing [[Microsoft Edge Legacy|Microsoft Edge [Legacy]]], Internet Explorer, Firefox, Chrome, and Opera, Firefox achieved the highest score on three of the seven tests. Four different JavaScript performance tests gave conflicting results. Firefox surpassed all other browsers on the [[Browser speed test|Peacekeeper benchmark]], but was behind the Microsoft products when tested with SunSpider. Measured with Mozilla's Kraken, it came second place to Chrome, while on Google's [[Browser speed test#Octane|Octane]] challenge it took third behind Chrome and Opera. Firefox took the lead with WebXPRT, which runs several typical HTML5 and JavaScript tasks. Firefox, Chrome, and Opera all achieved the highest possible score on the Oort Online test, measuring WebGL rendering speed (WebGL 2 is now current). In terms of HTML5 compatibility testing, Firefox was ranked in the middle of the group.<ref name="TekRevue-2015-04-01">{{cite web |url=https://www.tekrevue.com/spartan-benchmarks-ie-chrome-firefox-opera/ |title=Spartan Benchmarks: Spartan vs. IE, Chrome, Firefox, and Opera |last=Tanous |first=Jim |date=April 1, 2015 |website=TekRevue |access-date=January 10, 2016 |archive-url=https://web.archive.org/web/20151226174659/http://www.tekrevue.com/spartan-benchmarks-ie-chrome-firefox-opera/ |archive-date=December 26, 2015 |url-status=live}}</ref>

A similar set of benchmark tests in 2016 showed Firefox's JavaScript performance on Kraken and the newer [[Browser speed test#JetStream|Jetstream]] tests trailing slightly behind all other tested browsers except Internet Explorer (IE), which performed relatively poorly. On Octane, Firefox came ahead of IE and Safari, but again slightly behind the rest, including [[Vivaldi (web browser)|Vivaldi]] and Microsoft Edge [Legacy]. Edge [Legacy] took overall first place on the Jetstream and Octane benchmarks.<ref name="digitaltrends.com">{{cite web |url=https://www.digitaltrends.com/computing/best-browser-internet-explorer-vs-chrome-vs-firefox-vs-safari-vs-edge/ |title=Battle of the best browsers: Edge vs. Chrome vs. Firefox vs. Safari vs. Opera vs. IE |last=Coppock |first=Mark |date=May 27, 2018 |website=[[Digital Trends]] |access-date=January 10, 2016 |archive-url=https://web.archive.org/web/20160103215548/http://www.digitaltrends.com/computing/best-browser-internet-explorer-vs-chrome-vs-firefox-vs-safari-vs-edge/ |archive-date=January 3, 2016 |url-status=live}}</ref>