{"id":28,"date":"2004-12-27T16:14:00","date_gmt":"2004-12-27T10:44:00","guid":{"rendered":"https:\/\/www.quickonlinetips.com\/archives\/2004\/12\/27\/quick-tip-to-speed-up-firefox\/"},"modified":"2026-10-12T18:54:32","modified_gmt":"2026-10-12T13:24:32","slug":"quick-tip-to-speed-up-firefox","status":"publish","type":"post","link":"https:\/\/www.quickonlinetips.com\/archives\/2004\/12\/quick-tip-to-speed-up-firefox\/","title":{"rendered":"How to Speed Up Firefox: 10 Tweaks That Work in 2026"},"content":{"rendered":"<p>In 2004 the popular way to <strong>speed up Firefox<\/strong> was editing about:config to turn on HTTP pipelining and cut the initial paint delay. Those tweaks no longer apply: Firefox removed pipelining years ago and modern versions are tuned for speed out of the box. If Firefox feels slow in 2026, these fixes actually help.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-large wp-image-64734\" src=\"https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/speed-up-firefox-1024x538.webp\" alt=\"Speed up Firefox\" width=\"1024\" height=\"538\" srcset=\"https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/speed-up-firefox-1024x538.webp 1024w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/speed-up-firefox-300x158.webp 300w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/speed-up-firefox-150x79.webp 150w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/speed-up-firefox-768x403.webp 768w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/speed-up-firefox.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><strong>Quick answer:<\/strong> Update Firefox, disable or remove extensions you don&#8217;t need, open about:processes to find tabs or add-ons using lots of CPU or memory, and turn hardware acceleration on (or off if you see glitches). If it&#8217;s still slow, use Refresh Firefox from about:support, which keeps bookmarks and passwords but resets settings and add-ons.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6ae131a457ad4\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #1a202c;color:#1a202c\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #1a202c;color:#1a202c\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6ae131a457ad4\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2004\/12\/quick-tip-to-speed-up-firefox\/#10_ways_to_speed_up_Firefox\" >10 ways to speed up Firefox<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2004\/12\/quick-tip-to-speed-up-firefox\/#Old_about_config_tweaks_to_skip\" >Old about:config tweaks to skip<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2004\/12\/quick-tip-to-speed-up-firefox\/#FAQ\" >FAQ<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2004\/12\/quick-tip-to-speed-up-firefox\/#Why_is_Firefox_using_so_much_memory\" >Why is Firefox using so much memory?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2004\/12\/quick-tip-to-speed-up-firefox\/#Does_Refresh_Firefox_delete_bookmarks\" >Does Refresh Firefox delete bookmarks?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2004\/12\/quick-tip-to-speed-up-firefox\/#Is_Firefox_slower_than_Chrome\" >Is Firefox slower than Chrome?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"10_ways_to_speed_up_Firefox\"><\/span>10 ways to speed up Firefox<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li><strong>Update Firefox:<\/strong> Menu &gt; Help &gt; About Firefox.<\/li>\n<li><strong>Remove slow extensions:<\/strong> open about:addons and disable add-ons one at a time to find the culprit.<\/li>\n<li><strong>Check about:processes:<\/strong> shows CPU and memory for each tab and extension; close heavy ones.<\/li>\n<li><strong>Hardware acceleration:<\/strong> Settings &gt; General &gt; Performance. Untick &#8220;Use recommended performance settings&#8221; to toggle it and test.<\/li>\n<li><strong>Clear cache and site data:<\/strong> Settings &gt; Privacy &amp; Security &gt; Cookies and Site Data &gt; Clear Data.<\/li>\n<li><strong>Use tab unloading:<\/strong> Firefox unloads background tabs when memory runs low; keeping fewer tabs open helps.<\/li>\n<li><strong>Keep Enhanced Tracking Protection on:<\/strong> blocking trackers makes many pages load faster.<\/li>\n<li><strong>Refresh Firefox:<\/strong> about:support &gt; Refresh Firefox resets settings while keeping essentials.<\/li>\n<li><strong>Try Troubleshoot Mode:<\/strong> Help &gt; Troubleshoot Mode starts Firefox without add-ons and themes to test speed.<\/li>\n<li><strong>Check your computer:<\/strong> low RAM, a full disk or malware slow every browser. See <a href=\"https:\/\/www.quickonlinetips.com\/archives\/2006\/02\/speed-up-windows-make-it-faster\/\">how to speed up Windows 11<\/a>.<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"Old_about_config_tweaks_to_skip\"><\/span>Old about:config tweaks to skip<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><code>network.http.pipelining<\/code>: removed from Firefox; HTTP\/2 and HTTP\/3 do this better.<\/li>\n<li><code>nglayout.initialpaint.delay<\/code>: no meaningful gain on modern Firefox.<\/li>\n<li>Random memory and cache &#8220;boosters&#8221;: can cause instability.<\/li>\n<\/ul>\n<p>More Firefox tips: <a href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/07\/firefox-like-google-chrome\/\">make Firefox work like Chrome<\/a> and the <a href=\"https:\/\/www.quickonlinetips.com\/archives\/2009\/04\/power-browsing-firefox-addons\/\">best Firefox add-ons for power browsing<\/a>. Mozilla&#8217;s own <a href=\"https:\/\/support.mozilla.org\/kb\/firefox-uses-too-much-memory-or-cpu-resources\" rel=\"noopener\" target=\"_blank\">high memory and CPU guide<\/a> has more fixes.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Why_is_Firefox_using_so_much_memory\"><\/span>Why is Firefox using so much memory?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Usually many open tabs or a heavy extension. Check about:processes.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_Refresh_Firefox_delete_bookmarks\"><\/span>Does Refresh Firefox delete bookmarks?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. It keeps bookmarks, history, passwords and cookies, but removes extensions and custom settings.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Is_Firefox_slower_than_Chrome\"><\/span>Is Firefox slower than Chrome?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Speeds are close in 2026; differences depend more on extensions and the sites you use.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In 2004 the popular way to speed up Firefox was editing about:config to turn on HTTP pipelining and cut the&#8230;<\/p>\n","protected":false},"author":4,"featured_media":64734,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[23],"tags":[],"class_list":["post-28","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-computers"],"_links":{"self":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/posts\/28","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/comments?post=28"}],"version-history":[{"count":1,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/posts\/28\/revisions"}],"predecessor-version":[{"id":64735,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/posts\/28\/revisions\/64735"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/media\/64734"}],"wp:attachment":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/media?parent=28"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/categories?post=28"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/tags?post=28"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}