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.

• Delete cookies to remove the information websites have stored on your computer {web link}

• How to clear the Firefox cache {web link}

If there is still a problem,

Start Firefox using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?

While you are in Troubleshoot(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}

Hi kenmeer, it looks like you are running Firefox on MacOS.

As mentioned in the release notes, "Firefox [91] now automatically enables High Contrast Mode when "Increase Contrast" is checked on MacOS."

Is it possible you have that setting?

If so, please try one or both of these two options:

(1) Turn off the system-level setting. This appears to be the most effective workaround.

(2) Disable High Contrast mode in Firefox. See: Disable high contrast mode in Firefox.

For both changes, you might need to Quit Firefox and start it up again to see the normal display.

Any difference?

I was able to solve the problem by going to FF~Preferences~Colors, then "Over ride system colors-Never" (From a suggestion from another Poster in response to a similar question I asked re: making my Text black again). Everything looks OK now. Thanks anyway for your reply.

I was able to solve the problem by going to FF~Preferences~Colors, then "Over ride system colors-Never"

Thanks for reporting back. That is the solution in this article: Disable high contrast mode in Firefox

I was able to solve the problem by . . . .

That was very good work. Well Done. Please flag your https://support.mozilla.org/en-US/questions/1347107#answer-1435074 post as Solved Problem as this can help others with similar problems. Go to that post and click the 'Solved' button to its right.