![]() ![]() ![]() Accessibility features allocated memory for a tab is never released. There's a memory leak in the Accessibility Service. With the option disabled, I've had the same browser window open for 5 hours now, scrolled for 3 hours through Facebook and Reddit (which usually just 1 tab caused Firefox to use up all available memory), but memory usage hasn't gone beyond the 1 GB mark so far. Browsing a tab and then closing that tab never released its memory usage. Before disabling it my Firefox used up all available memory after a short session of browsing. So, this is obviously a problem with Accessibility Service. It doesn't state why or if there's a way to minimize the performance impact without completely disabling it though. Firefox stability may be adversely affected Third party applications may be monitoring your web surfing activity Firefox Accessibility Service may negatively impact Firefox browsing performance This page states that the impact of having these services enabled are: "Do not disable Firefox Accessibility Service if you or someone who shares your device accesses the web through Firefox using any type of physical impairment assistive software."įull docs here. It should be set to 0 by default, edit the value and set it to 1, then restart the browser. To try, navigate to the config editor by typing about:config in the address bar, then search for accessibility.force_disabled. Firefox used to take up 100% of my 8GB memory, but now doesn't go above 1 GB of memory. What did fix it though is setting accessibility.force_disabled to 1 in the config. ![]() I tried setting memory cache to a low size, disabling extensions, refreshing, and using a different version on a completely separate machine, but all these attempts failed at keeping Firefox's memory usage at bay. I've been struggling for a long time with Firefox's extreme memory usage. Defect Report on Bugzilla (You can vote for this bug there) ![]()
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