I started my Ubuntu (Version 18.04 LTS) machine this evening only to discover that Firefox has suddenly stopped working. No matter what web page I attempt to browse to, it simply sits there blankly, never timing out or displaying anything. Using information I found here: https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems#w_start-firefox-in-safe-mode
I followed their advice, and restarted in Safe mode. This worked which tended to imply some add-on was not working. I'm not generally a fan of having dozens of add-ons in my browser, so was not surprised to find only 5 in there, all of which I disabled. When running in normal mode, but with all the Add-ons etc. disabled, Firefox still refused to work. Next I disabled performance/hardware acceleration. No Joy.
I then proceeded to completely uninstall and reinstall Firefox via CLI. Still no luck. Used the following website advice to do so: https://linuxconfig.org/how-to-install-uninstall-and-update-firefox-on-ubuntu-18-04-bionic-beaver-linux
I must point out that my computer has a working Internet connection (I used it for example, to download emails as well as carry out the download/re-installation of Firefox). This is strictly Firefox related. This question may be better suited to the Mozilla forum page, but given the fact that I don't know where the problem lies, and I've completely re-installed Firefox, I thought it prudent to start here.
I keep my computer updated at all times, and am running the latest version of Firefox (67.0). I'm really at a loss as to what to do next.