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Your Firefox is out of date and may contain a security risk!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

firefox unresponsive


I'm having lots of trouble with 4.0b7, I've been using this beta since the beginning and things seem to have gotten a lot worse with 4.0b7.

I'm running it on a 2009 MacBook Pro 13" OS X 10.6.5

The first thing I've noticed is the Menu at the top (Fire, Edit, View, etc) will become unresponsive at some point when using the browser. This has happened a few times and the only way I could quit was to Right Click the icon in the Dock and quit that way. The browser itself remains usable, I can click web links and type in addresses... it's just the top bar that becomes unusable. Quitting was the only way to correct this.

Additional System Details

Crash ID

No crash ID because it didn't crash, the top menu became unresponsive while the rest of the browser worked

Installed Plug-ins

  • iPhoto6
  • The Flip4Mac WMV Plugin allows you to view Windows Media content using QuickTime.
  • 4.0.50524.0
  • Contribute Plug-inInbrowser Editor Plug-in
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • Java Plug-In 2 for NPAPI Browsers
  • Shockwave Flash 10.1 r102


  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b7) Gecko/20100101 Firefox/4.0b7

More Information

  • Top 25 Contributor
  • Moderator
191 solutions 1966 answers

I have a new iMac (Sept 2010) running OS X 10.6.5 and haven't noticed any problems with Firefox 4 Beta 7 menu items, although I haven't been testing Beta 7 very long. (I have Firefox 4 Beta 7 installed in a separate Applications: "Firefox4Beta" folder and still have Firefox 3.6 installed, by the way. I'm using separate Firefox profiles for each.)

If Firefox 4 Beta 6 worked but not in Firefox 4 Beta 7 then the problem may be specific your system. Read the Release Notes to see what is different between Beta 6 and Beta 7, in case it helps:


If Firefox 4 Beta 7 is causing problems you could try Troubleshoot and diagnose Firefox problems or Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems to see if it is something simple with your Firefox setup or add-ons.

If you no longer wish to use Firefox 4 Beta 7 because of its problems then I suggest, for the time being, that you uninstall it (e.g., drag the Firefox.app to the Trash) and reinstall either Firefox 3.6.xx from www.mozilla.com or Firefox 4 Beta 6 from http://releases.mozilla.org/pub/mozilla.org/firefox/releases/4.0b6/

Here is the download link for Firefox 4 Beta 6, English-US, for Mac users:

Important: This forum is for Firefox support, not to report problems to Firefox developers. Make sure you use the Feedback button in Firefox 4 Beta to let Firefox developers know about the problem. If you need more space, you can use http://hendrix.mozilla.org/ but be sure to include "Firefox 4 Beta 7" in your feedback report.

Modified by AliceWyman

digitalfox 0 solutions 1 answers

Helpful Reply

I have a Mac running 10.6.5 and have been having this unresponsive problem with firefox for the longest time. Several versions have dones this and not firefox updates have resolved the issue. Firefox will not respond to key commands nor will it respond to the mouse and selecting menus. But it will let me select file and then quit.

This is really annoying happens either if I leave my computer asleep or just on for hours or overnight then the next morning nothing I have to quit and relaunch firefox for it to respond.

  • Top 25 Contributor
  • Moderator
191 solutions 1966 answers


You would likely get a better answer if you started a new thread (ask a new question) in the Firefox Support forum. Even though your issue is similar (Mac OS X 10.6, Firefox not responding to key commands or mouse clicks selecting menu items), starting a new thread will let others trying to help see details about your system and Firefox version that may help solve your problem.