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Firefox stops responding when opening dialog box

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I recently had a problem with redirecting Google results to a variety of random websites. I ended up running ComboFix and that problem went away. Since then however, I have noticed that I cannot open any dialog boxes through Firefox (file upload, save as, download, options). Whenever I try the browser freezes and when i try to do anything it says it is not responding. I then close the program and sometimes I have to end the process in the task manager in order to open Firefox again.

I recently had a problem with redirecting Google results to a variety of random websites. I ended up running ComboFix and that problem went away. Since then however, I have noticed that I cannot open any dialog boxes through Firefox (file upload, save as, download, options). Whenever I try the browser freezes and when i try to do anything it says it is not responding. I then close the program and sometimes I have to end the process in the task manager in order to open Firefox again.

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Do a clean reinstall.

Download a fresh Firefox copy and save the file to the desktop.

  • Uninstall your current Firefox version.
  • Do not remove personal data when you uninstall the current version.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.

Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.

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I had re-installed Firefox 5.0.x more than once, and this time I deleted the program folder, but the problem is still there.