We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

Avatar for Username

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

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

Firefox was recently updated to 3.6.6 and now repeatedly becomes nonresponsive. How do I fix this?

  • 2 valiny
  • 2 manana an'ity olana ity
  • 1 view
  • Valiny farany nomen'i AnonymousUser

AnonymousUser
AnonymousUser
more options

Firefox auto updated to v 3.6.6 and now it repeatedly stops responding. I have to open task manager and end the program numerous times a day. This did not happen in the previous version.

User Agent

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6.3; WinNT-PAI 07.08.2009; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

Firefox auto updated to v 3.6.6 and now it repeatedly stops responding. I have to open task manager and end the program numerous times a day. This did not happen in the previous version. == User Agent == Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6.3; WinNT-PAI 07.08.2009; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

All Replies (2)

AnonymousUser
AnonymousUser Tompon'ny fanontaniana
more options

Microsoft .NET Framework Assistant 1.1 is not compatible with firefox 3.6.6

AnonymousUser
AnonymousUser Tompon'ny fanontaniana
more options

Firefox 3.6.4 and 3.6.6 use a process called, "plugin-container.exe" which was using up most of my CPU when I opened up multiple tabs that contained Adobe Flash files, and caused Firefox to lock up.

My solution was to use Firefox 3.5.10 which you can get from the Mozilla website at http://www.mozilla.com/en-US/firefox/all-older.html I am using Adobe Flash 10.1.53.64 without any problem in this version of Firefox. Check the release notes, I believe it contains all the latest security fixes in "Firefox 3.6.4".

Hopefully, they will fix Firefox 3.6 in the next version (e.g. Firefox 3.6.7), until then you should probably use "Firefox 3.5.10".