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). Is the problem still there?

Hi goodkitty, sorry to hear about the eye pain, is this issue mainly with the interface (toolbar) area or the content area?

Interface Area

Firefox includes three "themes" (color schemes). You can switch among them using either of these methods:

• Customize feature, Themes button toward the bottom of the tab: Customize Firefox controls, buttons and toolbars

• Add-ons page, Appearance panel -- you can open the add-ons page using any of these methods, then click Appearance in the left column:
  • Command+Shift+a (Windows: Ctrl+Shift+a)
  • "3-bar" menu button (or Tools menu) > Add-ons
  • type or paste about:addons in the address bar and press Enter/Return

There also are a wide variety of add-on themes ranging from solid grays to fanciful artwork which you can use a background for the toolbar area. https://addons.mozilla.org/firefox/themes/

Content Area

Firefox's built-in setting to override page colors can make many pages hard to use. You could check the Add-ons site (Extensions) for options to modify page colors with more flexibility.

See also: Toggle Website Colors: https://addons.mozilla.org/firefox/addon/togglewebsitecolors/

Ok so thanks the tabs are OK now, as I got rid of the dark version by doing command + shift+ a. I still haven't found a way to lessen the background glare. Working on it...

OK I found an add on, White Glossy Look, that is a softer white. Still something giving me trouble, I think the extreme black against white of Support, above. So I better high tail it out of here.

Thanks everyone. Never had this problem w/any other browser and certainly not Firefox.... I hope someone who works on it notices this thread.

Thanks again.

Suggest you try the Soft Aqua theme.

Suggest you try the Soft Aqua theme.

I think I need to speak to someone at the Foundation. I have a migraine for the first time in my life from this update.

Thanks everyone but no more help needed.

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Go to that message, and use the Undo link to its right.

Ok I found a nice theme, simple def, that cuts down on the blinding contrast of light background and intensely black letters and also works nicely on the tabs. Thanks for ideas.

goodkitty said

Ok I found a nice theme, simple def, that cuts down on the blinding contrast of light background and intensely black letters and also works nicely on the tabs. Thanks for ideas.

That's great - congrats  !

Would you share it's name with us  ? Might be helpful to others .......

Hi, sorry it was confusing: the name is "simple def" from Firefox Add-Ons

goodkitty said

Hi, sorry it was confusing: the name is "simple def" from Firefox Add-Ons

Thank you  !

This is the one : https://addons.mozilla.org/en-US/firefox/addon/simple-def/

Indeed very easy on the eyes ......