When Firefox checks for updates it says it's up to date but it isn't
This is to help others out in future. I had this problem for a while and couldn't find any other web page with a solution.
I would go to the About Firefox dialog Click on Check for updates It would say "Firefox is up to date" Even though I knew version 41 was released and I had 39. (This also happened in the past with older versions. (I used to resort to updating manually with a fresh download.))
After digging, in about:config, I found the key app.update.url.override It had the value http://au4.moziila.org Note the double i - I suspect that some malware (removed a long time ago) inserted this value.
I right-clicked and chose Reset. And now the update check works!
Hope this helps someone else with the same issue.
Krejt Përgjigjet (1)
If you have problems updating a program, download the current full installer from it's web site.
Download Firefox Full Installer For All languages And Systemsv41 {web link}