Are you having a problem browsing in Mozilla Firefox? If yes then you need to go through the below-mentioned points to resolve the not working issue of your Firefox:

 You can try cleaning the cookies and cache data of your system.
 You can reinstall the Firefox again on your PC.
 Even you can restart your computer.
 One can also open Firefox in Safe Mode.
 Check your system for any malicious programs.

Even after implementing the given steps, if the problem persists, then you can consult Mozilla Firefox customer support that is accessible 24*7. The customer care team will be available round the clock to guide users in fixing the issue.

Read More: Mozilla Firefox Customer Service Number | Mozilla Firefox Tech Support Phone Number