This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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 doesn't firefox work after I download it?

  • 3 svar
  • 1 har dette problemet
  • 1 view
  • Siste svar av FredMcD

more options

Several days ago Firefox quit working.... I downloaded a new version, it does not work either. What's going on?

Several days ago Firefox quit working.... I downloaded a new version, it does not work either. What's going on?

All Replies (3)

more options

there might be several of cause behind that . So, to get exact cause provide us details about it . Some of Docs will help you to collect the problems : [1] http://mzl.la/1BAQPY7 [2] http://mzl.la/16zLrEU

To get rid from virus of other wrong installable setups please download firefox from Firefox

more options

You can check if you can start Firefox in Safe Mode by holding down the Shift/Options key.

It is possible that your security software (firewall, anti-virus) 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

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select Network. Look for Configure How Firefox Connects and press the Settings button. If you are using a proxy, make sure those settings are correct. If there is no proxy, first use No Proxy. If there is a problem, then try System Proxy.