Firefox Community Forum

I cannot log in to Firefox and get the tabs I had when I logged out. I get a brand new page and can log in as I please, starting with tab 1. I've looked at every possible entry under the 3 ... menu, and ever entry under File. I've restarted the computer, etc.

I commonly keep windows I am using as reference for research I'm doing and don't add every item to a bookmark until I've conclude which I should keep. This same event happened a year ago and I'm quitting Firefox after close to 30 year of use unless I can recover, and learn what caused this.

It has opened and closed fine literally hundreds of times, now it's as if erased the past but will reopen fine and start over without having to download Firefox again.

I'd rather recover than start over. Help if you can, please.

Started a couple days ago

Youtube works fine for everything, except when i try to watch a video, the rectangle where the video is supposed to be appears black during loading (normal) but then vanish.

checking the console i get a huge error that's just unreadable for me

it doesn't happen on edge, or in private navigation

turning every addon off doesn't fix the issue, and it does it even in "troubleshoot mode"

i haven't "refreshed" because i don't know what kind of data will be lost when i do that

Since the most recent update a few days ago Firefox (on my desktop PC) has been looking and behaving differently. The bookmarks sidebar has disappeared and can't be brought back in its previous form. Selecting Bookmarks toolbar - always show' does nothing. There is no 'Back' arrow to return to a previous screen. I'm finding this new version almost impossible to use. Have I done something wrong? Can I go back to the previous version of Firefox? Regards, Peter