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

How do I stop firefox from locking up while browsing?

  • 1 reply
  • 3 have this problem
  • 1 view
  • Last reply by jaytkay

more options

Browser "locks up" at random times while browsing. I was unable to use control+Alt+Del to close the browser and had to manually shut off and restart the computer. Tried the following: Firefox refresh, clearing the cache, clearing cookies, re-installing Firefox and scanning for possible viruses. All of the above without finding a fix to the problem.

Browser "locks up" at random times while browsing. I was unable to use control+Alt+Del to close the browser and had to manually shut off and restart the computer. Tried the following: Firefox refresh, clearing the cache, clearing cookies, re-installing Firefox and scanning for possible viruses. All of the above without finding a fix to the problem.

All Replies (1)

more options

Firefox 40 is acting up for me.

Typed characters are delayed.

Scrolling freezes.

Screen greys out and becomes unclickable.

FIrefox 40, Windows 8.1