Navigation toolbar not working
I type the website address into the navigation toolbar and press enter but nothing happens. My search engine, on the other hand, works just fine.
Moambuepyre
Opaite Mbohovái (3)
That behaviour is typically caused by an add-on or conflicting add-ons. Try the procedures in the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article.
Still having problems
Try creating a new profile. This will establish if the problem is caused by something in your profile (location where user data/settings are stored)
See Creating a new Firefox profile on Windows
If the new profile works, you can transfer data such as bookmarks and passwords to the new profile. It is best not to transfer the preferences file, as you issue may be related to a preference. You should also re-install the add-ons rather than trying to copy them. See Transferring data to a new profile.