I refreshed Firefox and the problem is solved.
Step by step if you need it:
- Save your open tabs if you want to retain them:
- Right click on any tab and “Select all tabs”
- Right click on any tab and select “Bookmark tabs” (maybe name the group with today’s date)
- Save all your bookmarks and preferences:
- Create a Firefox account if you don’t have one
- Ensure your Firefox is logged in to your Firefox account
- Ensure sync is configured to save everything you want to keep. I sync everything except passwords.
- Ensure sync is on and check sync has completed
- Click ‘sync now’ under your account to be sure.
- Refresh Firefox:
- Exit Firefox
- Go to Windows add/remove programs
- Find Firefox and click uninstall
- Select the “Refresh” option
- Let it do its thing
- Firefox should restart
- There is no need to import anything from a previous browser. Select “Skip this step”
- Be patient while it re-installs your extensions and sync’s everything
- Sign-in again to Bitwarden and test autofill on one website you have saved
- I found the best success to exit Firefox and open it again at this point
- Find your saved tabs and choose ‘open all tabs’ (or just one you want)
Trust this helps someone out!