Diễn đàn hỗ trợ Firefox

I would like to inspect the data that would be removed if I checked the "Settings for Clearing History > Data: Site settings"

From earlier experimentation, I observed that checking that box removes some persistence data that the ChatGPT web site uses, for instance. I also observed that it removes "Exceptions - Cookies and Site Data" that I have entered (not sure why, because it's data I typed, not data that the web sites are saving on my machine).

But the question is what steps are performed on what tables in the current user's profile folder. If not all contents are removed from a folder, please specify what the deletion criteria are.

The lack of visible emotion icons only occurs on Facebook. Only two are visible. They're there and work with a mouse click, but they're invisible. Reinstalling Firefox didn't help. The problem doesn't occur in other browsers.

Today i cannot sign in to facebook from my Mozilla page why ?? i can sign in from other places ,like google ... every time i try go to facebook from Mozilla i get the message Sorry! Something went wrong :( Why ???

I lost everything in a tragic housefire recently and I cannot remember the exact username I used for my Mozilla Account. Of course, this means I have also lost years of valuable Favorites and Passwords and Logins.

Is there anyway to find out what my login name was?