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Firefox becomes slow after a couple of weeks open
(bugzilla.mozilla.org)
A place to discuss the news and latest developments on the open-source browser Firefox
Under
about:unloads
, you will see a list of open tabs, sorted by resource usage. You can click-spam the "Unload" button until that list is empty, or until the most resource-intensive tabs are off the list.This does not require any third-party dependencies, and the tab will still be present on top. The site will reload once the tab is selected again.