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Firefox has serious problems in Mac OS

  • 4 replies
  • 2 have this problem
  • 53 views
  • Last reply by FredMcD

Penta-Power
Penta-Power
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Version 76 has serious problems in Mac Mojave and Catalina. I'm thinking of moving to another browser if the problems aren't fixed in a few weeks. In Mac Mojave, the UI sometimes blinks and sometimes becomes black. I had to restart the app but it happened quite frequently. After updating to Catalina, all shortcuts are unusable, most right click menus are blank and even the menu bar is blank. When hovering the mouse over the menu bar, nothing displays, just blank menus. Sometimes, the app starts up with default UI although I customised it a bit. In those cases, I had to close the tab or even restart the app.

I'm getting disappointed and perhaps I'll move to another browser soon.

Version 76 has serious problems in Mac Mojave and Catalina. I'm thinking of moving to another browser if the problems aren't fixed in a few weeks. In Mac Mojave, the UI sometimes blinks and sometimes becomes black. I had to restart the app but it happened quite frequently. After updating to Catalina, all shortcuts are unusable, most right click menus are blank and even the menu bar is blank. When hovering the mouse over the menu bar, nothing displays, just blank menus. Sometimes, the app starts up with default UI although I customised it a bit. In those cases, I had to close the tab or even restart the app. I'm getting disappointed and perhaps I'll move to another browser soon.
Attached screenshots

Chosen solution

Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

If there is still a problem, Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Did this help?

While you are in safe mode;

Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

How to disable Hardware Acceleration {web link}

Read this answer in context 👍 1

All Replies (4)

FredMcD
FredMcD
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The message from webhelp2 above is NOT Mozilla support.

FredMcD
FredMcD
more options

Chosen Solution

Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

If there is still a problem, Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Did this help?

While you are in safe mode;

Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

How to disable Hardware Acceleration {web link}

Penta-Power
Penta-Power Question owner
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Thank you very much. I've updated to version 77. It works fine now.

FredMcD
FredMcD
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Glad to help. Safe Surfing.