Tap here to go to the mobile version of the site.
Your Firefox is out of date and may contain a security risk! Upgrade Firefox

Support Forum

I use FireFox at long time. But today FireFox 18 was installed by update system and DON'T RUN anymore om my Windows 7 just block. fernandomiguel3@gmail.com


I use Windows 7 on a computer with memory 4 Gigas and usr FireFox at log time without problems

Additional System Details


  • User Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)

More Information

Today the update system of the program installs FireFox18 version and after that I try to begin navigation
and the program block compurer. I have to use ctrol + alt + del to get out. I tray to install FireFox 18 again
after unintall program and maid download from you of exe file but don't work. Just block computer. I sow
the some problem in the question of other user on your site pages.
Thanking for your replay

  • Top 10 Contributor
  • Moderator
10740 solutions 96657 answers

Helpful Reply

A possible cause is security software (firewall,anti-virus) that 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 internet for Firefox and the plugin-container process and the updater process.