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How to fix Drop down menus that do not stay open after updating to Windows 10

  • 4 replies
  • 11 have this problem
  • 13213 views
  • Paskiausią atsakymą parašė FredMcD

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I not keep down menus open long enough to select favorites, get to options or to print etc. The menu and the favorites open but won't let me scroll down to select. They close before I click on anything. In Favorites I have various folder but can not get them to click on the site I want because the drop down disappears. The same thing happens with the favorites menu bar list that extend beyond the the bar at the top of the browser.

Chosen solution

Separate Issue; Your System Details shows;

Installed Plug-ins

Garmin Communicator Plug-In 4.2.0.0 BETA Garmin Communicator Plug-In 4.1.0.0

Shockwave Flash 19.0 r0 Shockwave Flash 18.0 r0
Having more than one version of a program may cause issues. You must remove the older programs. Then get the current full installer.

Note: Edge on Win10 does not use ActiveX version but its own Flash.

Flash: Grab the uninstaller from here: Uninstall Flash Player | Windows Uninstall Flash Player | Mac

Then reinstall the latest version.

Flash Player Version 19.0.0.185
https://www.adobe.com/products/flashplayer/distribution3.html
Note: Windows users must download the “Internet Explorer” and “Plugin-based browsers” installers.

Skaityti atsakymą kartu su kontekstu 👍 0

All Replies (4)

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You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.

You can check if there is an update for your graphics display driver and check for hardware acceleration related issues.


Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window
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Chosen Solution

Separate Issue; Your System Details shows;

Installed Plug-ins

Garmin Communicator Plug-In 4.2.0.0 BETA Garmin Communicator Plug-In 4.1.0.0

Shockwave Flash 19.0 r0 Shockwave Flash 18.0 r0
Having more than one version of a program may cause issues. You must remove the older programs. Then get the current full installer.

Note: Edge on Win10 does not use ActiveX version but its own Flash.

Flash: Grab the uninstaller from here: Uninstall Flash Player | Windows Uninstall Flash Player | Mac

Then reinstall the latest version.

Flash Player Version 19.0.0.185
https://www.adobe.com/products/flashplayer/distribution3.html
Note: Windows users must download the “Internet Explorer” and “Plugin-based browsers” installers.

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I am using a Mac, do not have hardware acceleration or flash enabled, do not have two versions of any one plugin, and am now encountering the same problem.

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MarjaE Please go to the top of any support.mozilla.org web page and use the Ask A Question link; https://support.mozilla.org/en-US/questions/new This will let us look at your system details. No Personal Information Is Collected.