Hi caharvey, old versions of Firefox are always available, but not recommended. There's more info in this article: [[Install an older version of Firefox]]. It would be helpful to know more about your individual pain points with Firefox 89 in order to know whether we can suggest a workaround. ---- I will mention that there is a temporary preference in Firefox 89 to revert most of the tab bar and address bar changes. However, since this was retained just for testing, it might be glitchy. (1) In a new tab, type or paste '''about:config''' in the address bar and press Enter/Return. Click the button accepting the risk. (2) In the search box in the page, type or paste '''browser.proton.enabled''' and pause while the list is filtered (3) Double-click the preference to switch between '''true''' (new UI) and '''false''' (old UI)