Komunitné fórum Firefox

Hello, I am having a problem with Mozilla Firefox on Windows 10.

Firefox sometimes keeps loading continuously and some websites do not open properly or take a very long time to load. My internet connection is working normally, and the same websites may work better in another browser.

I have tried closing and reopening Firefox, restarting my computer, and refreshing the website, but the problem still happens.

Please help me check what may be causing this problem and how I can repair or reset Firefox without losing my bookmarks, passwords, and important data.

Thank you.

If I go on any website using OSM data (including OpenStreetMap itself) on Firefox logged into my account, I experience a lot of slowdown. This doesn't happen when I use incognito mode or when I use another browser, so I'm pretty sure there's some kind of cache or something that's connected to my Mozilla account that slows down OSM massively. I've tried clearing all cache and all cookies. I've even refreshed Firefox using the installer and it's still slow. I don't want to bother with deleting my account and creating a new one. What should I do to try and return back to normalcy on OSM?