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I'd suggest you try creating a new profile (after saving your bookmarks elsewhere) and start from there, installing your favorite extensions one by one. An unin

I'd suggest you try creating a new profile (after saving your bookmarks elsewhere) and start from there, installing your favorite extensions one by one. An uninstall and a fresh install could also be combined with this. Check the Firefox knowledge base for instructions on creating a new profile.

lkbm 7y ago
If you have Firefox sync on, you can also do a profile refresh from about:support and it will re-add your extensions via the sync. I did this last night and I think the only things I lost were userContent.css (which I'd backed up) and custom search engines. Yesterday, whenever I closed a window, it would freeze for 3+ seconds. After refreshing my profile, it's back in full working order again. EDIT: Oh yeah, I also lost all cookies (which is probably a good thing), notification settings, and my custom containers. tbh, the only thing that really matters is that I still have all my bookmark keywords. Everything else could have been wiped and I'd be fine.