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When I go to upload a file, no window appears to select it. Already tried clearing cache.

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No matter what website, as of this morning I can no longer upload any files through Firefox. Other browsers working fine. When I try to attach a file to an email or select "upload," nothing at all happens. Already checked pop-ups, cleared cache. Any clues?

No matter what website, as of this morning I can no longer upload any files through Firefox. Other browsers working fine. When I try to attach a file to an email or select "upload," nothing at all happens. Already checked pop-ups, cleared cache. Any clues?
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Additional System Details

Installed Plug-ins

  • Shockwave Flash 32.0 r0

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:66.0) Gecko/20100101 Firefox/66.0

More Information

Wesley Branton
  • Top 10 Contributor
555 solutions 4791 answers

Try Firefox Safe Mode to see if the problem goes away. Firefox Safe Mode is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).

If Firefox is open, you can restart in Firefox Safe Mode from the Help menu:

  • Click the menu button New Fx Menu , click Help Help-29 and select Restart with Add-ons Disabled.

If Firefox is not running, you can start Firefox in Safe Mode as follows:

  • On Windows: Hold the Shift key when you open the Firefox desktop or Start menu shortcut.
  • On Mac: Hold the option key while starting Firefox.
  • On Linux: Quit Firefox, go to your Terminal and run firefox -safe-mode
    (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)

When the Firefox Safe Mode window appears, select "Start in Safe Mode".

SafeMode-Fx35

If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article to find the cause.

To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.

When you figure out what's causing your issues, please let us know. It might help others with the same problem.

'''Try Firefox Safe Mode''' to see if the problem goes away. [[Troubleshoot Firefox issues using Safe Mode|Firefox Safe Mode]] is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes). '''If Firefox is open,''' you can restart in Firefox Safe Mode from the Help menu: * Click the menu button [[Image:New Fx Menu]], click Help [[Image:Help-29]] and select ''Restart with Add-ons Disabled''. '''If Firefox is not running,''' you can start Firefox in Safe Mode as follows: * On Windows: Hold the '''Shift''' key when you open the Firefox desktop or Start menu shortcut. * On Mac: Hold the '''option''' key while starting Firefox. * On Linux: Quit Firefox, go to your Terminal and run ''firefox -safe-mode'' <br>(you may need to specify the Firefox installation path e.g. /usr/lib/firefox) When the Firefox Safe Mode window appears, select "Start in Safe Mode". ;[[Image:SafeMode-Fx35]] '''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to find the cause. ''To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.'' When you figure out what's causing your issues, please let us know. It might help others with the same problem.
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Question owner

Thank you! Disabling hardware acceleration fixed the problem. Doesn't seem like there is a graphics card update available, so I'll just keep this disabled for now.

Thank you! Disabling hardware acceleration fixed the problem. Doesn't seem like there is a graphics card update available, so I'll just keep this disabled for now.
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Wesley Branton
  • Top 10 Contributor
555 solutions 4791 answers

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

Thank you for contacting Mozilla Support.

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily. Thank you for contacting Mozilla Support.
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cor-el
  • Top 10 Contributor
  • Moderator
17277 solutions 156165 answers

Did you try to reboot the computer (always the first to try)?

I'm not sure why hardware acceleration would have an effect on uploading files.

Did you try to reboot the computer (always the first to try)? I'm not sure why hardware acceleration would have an effect on uploading files.
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jrmcmahon 0 solutions 1 answers

I have been having the same problem. The file upload just makes Firefox not respond where I ultimately have to close the program and restart to use the browser at all. I can upload on every other browser. The problem DOES occur in Safe Mode. So what do I do now?

I have been having the same problem. The file upload just makes Firefox not respond where I ultimately have to close the program and restart to use the browser at all. I can upload on every other browser. The problem DOES occur in Safe Mode. So what do I do now?
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