Recently updated my 2012 MacBook Pro to macOS 10.15. After Firefox has been open for a while, it stops loading webpages. The title of the page loads, the browser window g…
Recently updated my 2012 MacBook Pro to macOS 10.15. After Firefox has been open for a while, it stops loading webpages. The title of the page loads, the browser window goes white and never displays anything; the page attempts to load continuously and navigation buttons don't respond. Other than that, Firefox operates and responds as though nothing's wrong. Meanwhile all other browsers can navigate the web just fine. Quitting Firefox (from the menu bar) causes the windows to close but an entry remains in "Force Quit" for an extended period. It can be forced closed from here, but doing so causes further attempts to open Firefox to have no windows appear; the only way to reopen Firefox appears to be to restart the whole computer. If allowed to close the rest of the way on its own- which can take up to 10 minutes- the crash dialog appears and Firefox can be restarted.
This has continued to happen despite repairing the drive, refreshing Firefox, removing and reinstalling Firefox, disabling hardware acceleration, running in safe mode, etc. There are no extensions installed and I have not synced my Firefox account.
Recently Firefox has become very slow to load pages. It starts up OK but is very slow to open the first page on a website, often over a minute. Once the first page opens …
Recently Firefox has become very slow to load pages. It starts up OK but is very slow to open the first page on a website, often over a minute. Once the first page opens however it will open links perfectly OK. It doesn't matter whether it's a bookmark I visit often or the first time I visit s website it's still very slow to open the first page.
I've tried everything I know (several times); I've uninstalled & re-installed Firefox, created a new profile, loaded in Safe Mode, removed all add-ons and re-installed them one by one and refreshed Firefox. Each method corrects it initially so I leave it a while then re-install each add-on in turn. I let it run for a day or so with each add-on and each time it runs fine. Until I get all add-ons re-installed! It always runs OK for a day or two (or sometimes longer) then it suddenly slows down again and will remain slow until I do one of the above again.
I'm running the latest version of Windows 10 and Firefox Quantum and I've also disabled the antimalware in Windows Defender but that's made no difference. By comparison I don't have any problems with either Chrome or Edge?
Any suggestions please?