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<blockquote data-quote="Rod" data-source="post: 1927389" data-attributes="member: 204485"><p>I just did a search for FirefoxCP Isolated Web Content and found this on the Mozilla site; <a href="https://connect.mozilla.org/t5/discussions/quot-firefoxcp-isolated-web-content-quot-is-slowly-consuming-all/td-p/1872" target="_blank">"FirefoxCP Isolated Web Content" is slowly consuming all of my Mac's memory.</a></p><p>It seems a number of people are complaining about similar or identical problems with FirefoxCP Isolated Web Content not to mention Firefox Web Extensions which on my M1 is using a total 541MB but I dont use it much.</p><p>With 5 tabs open Firefox plus FirefoxCP Isolated Web Content is using 3.85GB of memory on my device. Just for interest I launched CMM X then quit it again. It's helper utility (which I usually quit too) Health Monitor is using 62MB just FYI, maybe it tipped you over the limit.</p><p></p><p>Bottom line here, Firefox is a Memory hog, add to that, applications with background utilities running full time just use up your resources.</p><p></p><p>In comparison, with 6 open Tabs Brave browser is using 586MB, thats including Renderer's and Helper (GPU).</p><p></p><p>Have a look at this panel at the bottom in Activity Monitor Memory Tab;</p><p></p><p><img src="https://www.mac-forums.com/attachments/screenshot-2023-02-17-at-2-24-10-pm-png.37973/" alt="Screenshot 2023-02-17 at 2.24.10 pm.png" class="fr-fic fr-dii fr-draggable " style="" /></p><p>You can see (with Firefox off) I'm only using about half of my physical memory, try doing the same then with the Activity Monitor open launch Firefox and download a file.</p></blockquote><p></p>
[QUOTE="Rod, post: 1927389, member: 204485"] I just did a search for FirefoxCP Isolated Web Content and found this on the Mozilla site; [URL='https://connect.mozilla.org/t5/discussions/quot-firefoxcp-isolated-web-content-quot-is-slowly-consuming-all/td-p/1872']"FirefoxCP Isolated Web Content" is slowly consuming all of my Mac's memory.[/URL] It seems a number of people are complaining about similar or identical problems with FirefoxCP Isolated Web Content not to mention Firefox Web Extensions which on my M1 is using a total 541MB but I dont use it much. With 5 tabs open Firefox plus FirefoxCP Isolated Web Content is using 3.85GB of memory on my device. Just for interest I launched CMM X then quit it again. It's helper utility (which I usually quit too) Health Monitor is using 62MB just FYI, maybe it tipped you over the limit. Bottom line here, Firefox is a Memory hog, add to that, applications with background utilities running full time just use up your resources. In comparison, with 6 open Tabs Brave browser is using 586MB, thats including Renderer's and Helper (GPU). Have a look at this panel at the bottom in Activity Monitor Memory Tab; [IMG alt="Screenshot 2023-02-17 at 2.24.10 pm.png"]https://www.mac-forums.com/attachments/screenshot-2023-02-17-at-2-24-10-pm-png.37973/[/IMG] You can see (with Firefox off) I'm only using about half of my physical memory, try doing the same then with the Activity Monitor open launch Firefox and download a file. [/QUOTE]
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