Firefox not working correctly after I reset Firefox

[cool09]

My Firefox Menu dropdowns disappeared so I read that you should hit “alt” button to restore it. It only works temporarily and dropdowns disappear every 5 minutes. And Firefox is not saving passwords when I visit websites. (I checked and I still have all my passwords saved in Firefox Settings.) And I have “Fill usernames and passwords automatically” checked in Firefox Privacy Settings.
I started having problems with Firefox when I installed “Hide my IP” add-on because I wanted to change my IP address. I added it because I was getting website advertisement popups telling me to buy a VPN. I disabled “Hide my IP” yesterday. And I’m also getting more website popups now. Do I have to tweak Firefox Settings to stop all of these problems?
Firefox has been up-to-date and I’m using Windows 10.

[Bruce]

I would be creating a new Firefox profile and logging in under that account.
Export your current bookmarks and save your passwords, then import them into the new profile.

And as for annoying ads, use uBlock Origin.

[Bruce]

@cool09 - still with us?