Firefox 115.3.1esr hangs randomly for 5-10 minutes
I'm using Windows 7 and have been migrated to the esr updates for Firefox. I think this problem started cropping up just before going to the esr versions, but not sure. Firefox will a) randomly hang and do nothing for 5-10 minutes and then pick up fine b) tends to hang a lot when signing into websites like banks, etc, doing the same thing as (a). I've updated FF several times since then, but same problem. I did try to do 1 fix which suggested creating a new "places" database, but that did not solve the problem. Not sure where to go from here as nothing has changed on my computer since the problem started - no new software, etc.
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I have not used Troubleshoot mode - didn't even know about it. I should have mentioned in my explanation above that when the problem first cropped up I disabled all my extensions and it seemed to solve the problem, but at that time I thought it was just logging into a specific site. I eventually traced it down to - I thought - 1 specific extension so I disabled it. However, the problem came back, so it wasn't that extension. Same thing though, my extensions haven't changed before or after this problem cropped up. The only difference was I went on vacation. Before my vacation, no problems, after vacation, problems.
What's weird right now is FF is currently experiencing one of those lockups, so I can't refresh a page or open a new tab, but I can follow a link here to write this reply. Didn't expect that one! Weird.
You can create a new profile as a quick test to see if your current profile is causing the problem.
See "Creating a profile":
If the new profile works, you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.
I tried Troubleshoot Mode and the problem seemed to disappear, so probably linked like I thought before to a addon. I'm now disabling various addons to try and see which one might be causing the problem.
So far it looks like Adblocker Ultimate is the culprit. I've been using it for years, so no idea why this is now happening. I have Adblock Plus active as well, but it doesn't seem to be causing a problem. It doesn't block everything like AU. Any suggestions on a replacement for AU?
Having multiple blockers can cause conflict. uBlock Origin should be all you need, if the built-in filters are not enough you can add more.
I will try that and post how it goes.
Edit: So far so good. Thanks!
Modified by bgula