3. Temporarily Disable Your Antivirus and Firewall. Some antivirus and firewall solutions are sensitive to SSL errors. To address this issue, all you need to do is turn off HTTPS scanning. In previous, we posted a lot of firefoxes related article that definitely helpful for our users such as Best VPN Add-ons for Firefox and if you are using Windows operating system so you definitely need to see how to speed up computer Windows. FIX Slow Mozilla Firefox in Windows 10/8.1/7 and XP [Fix] All Bookmarks, Add-ons and Settings Lost, Mozilla Firefox Opens Like a Fresh Installation With New Blank Profile PS: Google Chrome web browser users can enable similar feature using following tutorial: Mozilla over the weekend scrambled to come up with a fix for a bug that crippled most Firefox add-ons. Engineers issued an update for the desktop browser Sunday afternoon that addressed the issue. Themes can change the look of Mozilla Firefox, while extensions add new features or enhance existing Firefox functions. If themes or extensions become corrupted, they can restrict Firefox from opening or accessing the Internet. Try opening Firefox in Safe Mode. Safe Mode disables themes, extensions and a process called hardware acceleration.

In the Mozilla Firefox address bar, type about:config Look for “network.stricttransportsecurity.preloadlist”

Mozilla over the weekend scrambled to come up with a fix for a bug that crippled most Firefox add-ons. Engineers issued an update for the desktop browser Sunday afternoon that addressed the issue. Themes can change the look of Mozilla Firefox, while extensions add new features or enhance existing Firefox functions. If themes or extensions become corrupted, they can restrict Firefox from opening or accessing the Internet. Try opening Firefox in Safe Mode. Safe Mode disables themes, extensions and a process called hardware acceleration.

May 04, 2019 · Incident summary. Updates – Last updated 14:35 PST May 14, 2019. We expect this to be our final update. If you are running Firefox versions 61 – 65 and 1) did not receive the deployed fix and 2) do not want to update to the current version (which includes the permanent fix): Install this extension to resolve the expired security certificate issue and re-enable extensions and themes.