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

The Tools dropdown menu is partially missing and the right click menu blanks out when I want to copy or paste.

more options

I cannot change my cookie settings because the Tools dropdown only contains a few of its normal options. And when I try to copy selected text, the right click menu pops up blank or else goes blank when I scroll over it to try and copy or paste. The other menus appear to be normal. I have been mysterily loosing some of the cookies I need for logins, etc. but I can't get to the advance options to modify my cookies.

I have done complete scans with both Norton and Microsoft Security Essentials and found no malware.

I cannot change my cookie settings because the Tools dropdown only contains a few of its normal options. And when I try to copy selected text, the right click menu pops up blank or else goes blank when I scroll over it to try and copy or paste. The other menus appear to be normal. I have been mysterily loosing some of the cookies I need for logins, etc. but I can't get to the advance options to modify my cookies. I have done complete scans with both Norton and Microsoft Security Essentials and found no malware.

Asịsa ahọpụtara

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
Gụọ azịza a na nghọta 👍 2

All Replies (3)

more options

Asịsa Ahọpụtara

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
more options

Thanks for the advice. Your solution worked!

When I disabled the Adobe Acrobat 9.0.0.332 plugin for Firefox the problem went away. I found this under the Tools>Add-ons>Plugins menu.

The Nitro PDF Download 3.0.0.1 extension for Firefox did not cause the same problem when it is "enabled".

However, when I opened a PDF file the Adobe plugin automatically re-enabled, and the problems reappeared. I had to uninstall Adobe Reader and install a new PDF reader. I chose the free PDF X-Change viewer. Now everything is working fine.

I appreciate your help.

more options

hmm cant be the only cause, i dont have adobe reader installed and i have this problem.