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I cannot update a Yahoo calendar entry in Firefox. It works fine in other browsers e.g. Chrome

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If I create a calendar entry in Yahoo calendar and click save, the entry is saved. If, however, I select Add More Details or, having saved the entry, open it and select edit, make the changes and click save, nothing happens. It should save and close the calendar entry but does not. If I open the same calendar in Chrome and do the same thing, the edit/save works fine.

If I create a calendar entry in Yahoo calendar and click save, the entry is saved. If, however, I select Add More Details or, having saved the entry, open it and select edit, make the changes and click save, nothing happens. It should save and close the calendar entry but does not. If I open the same calendar in Chrome and do the same thing, the edit/save works fine.

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Hello,

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:

  • In Firefox 29.0 and above, click the menu button New Fx Menu, click Help Help-29 and select Restart with Add-ons Disabled.
  • In previous Firefox versions, click on the Firefox button at the top left of the Firefox window and click on Help (or click on Help in the Menu bar, if you don't have a Firefox button) then click on 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".

Safe Mode Fx 15 - Win

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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I tried entering Firefox Safe Mode and the problem occurred.