

{"id":310,"date":"2026-06-19T18:27:12","date_gmt":"2026-06-19T18:27:12","guid":{"rendered":"https:\/\/apropostechsolutionscorp.ca\/blog\/?p=310"},"modified":"2026-06-19T18:27:12","modified_gmt":"2026-06-19T18:27:12","slug":"web-browsers-how-to-find-memory-usage-by-tab-in-firefox","status":"publish","type":"post","link":"https:\/\/apropostechsolutionscorp.ca\/blog\/2026\/06\/19\/web-browsers-how-to-find-memory-usage-by-tab-in-firefox\/","title":{"rendered":"Web: browsers: how to find memory usage by tab in Firefox"},"content":{"rendered":"\n<h3>Especially on a light-resource system, one might want to discover which tab(s) are using a lot of juice.<\/h3>\n<p>\nThe following is how I see it.<\/p>\n<p>\nRight now I&#8217;m using what I&#8217;d call a Linux crunch box. It&#8217;s a computer from around 2017 that can&#8217;t run Windows 10 or 11 but can run Linux &#8211; specifically, Lubuntu.<\/p>\n<p>\nWith my Windows PC, I commonly have 50 tabs open, sometimes on three different browsers(!), so 150 tabs total. [I am trying to cut down, though.] However, this low-resource crunchbox, whose distro included Firefox (as Linux commonly does, it seems), can&#8217;t run more than ten tabs without getting boggy. It depends on the tabs (the sites on the tabs), of course, but when I get to around ten tabs, I follow the &#8220;open one then close one&#8221; rule.<\/p>\n<p>\nThat said, there are some sites that simply use a lot of computing power, likely because of ads. If I go to one of those sites, this PC&#8217;s fan ramps up. I either have to wait until I&#8217;m on the Windows PC to visit them, or else close more tabs in Firefox &#8211; maybe down to three or four &#8211; before visiting one of those high-resource sites.<\/p>\n<p>\nSome browsers, when you mouse over a tab, it shows that tab&#8217;s memory usage. What about Firefox?<\/p>\n<p>\nTo find per-tab memory usage on Firebox, one goes into the application menu (top right, the three horizontal lines), then into More Tools, then Task Manager. You&#8217;ll see:)<\/p>\n<p>\nSource:<\/p>\n<p><a href=\"https:\/\/support.mozilla.org\/en-US\/kb\/task-manager-tabs-or-extensions-are-slowing-firefox\">support.mozilla.org<\/a><\/p>\n<p><a href=\"https:\/\/apropostechsolutionscorp.ca\">-JS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Especially on a light-resource system, one might want to discover which tab(s) are using a lot of juice. The following is how I see it. Right now I&#8217;m using what I&#8217;d call a Linux crunch box. It&#8217;s a computer from around 2017 that can&#8217;t run Windows 10 or 11 but can run Linux &#8211; specifically, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[99,72],"class_list":["post-310","post","type-post","status-publish","format-standard","hentry","category-web","tag-browsers","tag-firefox"],"_links":{"self":[{"href":"https:\/\/apropostechsolutionscorp.ca\/blog\/wp-json\/wp\/v2\/posts\/310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/apropostechsolutionscorp.ca\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apropostechsolutionscorp.ca\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apropostechsolutionscorp.ca\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/apropostechsolutionscorp.ca\/blog\/wp-json\/wp\/v2\/comments?post=310"}],"version-history":[{"count":7,"href":"https:\/\/apropostechsolutionscorp.ca\/blog\/wp-json\/wp\/v2\/posts\/310\/revisions"}],"predecessor-version":[{"id":317,"href":"https:\/\/apropostechsolutionscorp.ca\/blog\/wp-json\/wp\/v2\/posts\/310\/revisions\/317"}],"wp:attachment":[{"href":"https:\/\/apropostechsolutionscorp.ca\/blog\/wp-json\/wp\/v2\/media?parent=310"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apropostechsolutionscorp.ca\/blog\/wp-json\/wp\/v2\/categories?post=310"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apropostechsolutionscorp.ca\/blog\/wp-json\/wp\/v2\/tags?post=310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}