Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Why has my firefox stopped working since Thursday afternoon 10-15-15?

more options

Firefox has worked fine & now all of a sudden, it's stopped working. My Internet Explorer works, but I hate using it. Why & what do I do? Please help.

Firefox has worked fine & now all of a sudden, it's stopped working. My Internet Explorer works, but I hate using it. Why & what do I do? Please help.

Saafara biñ tànn

It is possible that your firewall or other security software blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access to install for Firefox and the plugin-container process and the updater process.

See:

Jàng tontu lii ci fi mu bokk 👍 0

All Replies (2)

more options

Saafara yiñ Tànn

It is possible that your firewall or other security software blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access to install for Firefox and the plugin-container process and the updater process.

See:

more options

I solved the problem by restarting my computer. I should have thought of that sooner. Duh!