So what happened to a answer for this : See if this is effecting you as am just guessing with no info : there appears to be an issue that only affects users who have turned off Cleartype Font rendering within their Windows Settings. So a workaround for the moment would either be to turn Cleartype back on or disabling hardware acceleration in Firefox: https://support.mozilla.org/en-US/kb/performance-settings ?

Also since this is a new question : Nothing was done about this : Please consider turning on send info to Mozilla from with in Firefox before posting a question. This helps us help you. I have no info from your system that would help see things that cause issues.

When you log in your name will give you all the questions you have asked. 26 questions and 32 Answers and 1 Solution.

The previous question was : https://support.mozilla.org/en-US/questions/1210561 will try to get it merged.

Decided I would follow through with this....... Please go to 3 Bar Menu and then Customize. Bottom left side under Themes switch it to light or default and see if it can be done and show up properly. There seems to be some code that has been corrupted I would think as My Black Theme is Black at the top and not where the display part is.

This issue would I think be in your Profile. Profile : Make a new one and test ...,,,,,,,,,,,,,,,,,,,: Is the Issue Still there.

• https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

If is your Profile :

• https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
• https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer
• https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile
• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Do not work with original files and do not copy corrupted files to the new profile.

Please let us know if this solved your issue or if need further assistance.