Please Refresh but do this 1st:

• https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer
• https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

then

• https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings

TEST....... If no issues then Extensions which need to be added back in 1 at a time and tested ..... Or it is your Profile : Make a new one and test ...:

• 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/recovering-important-data-from-an-old-profile
• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Note: Any customization will revert back to default, you will also need to reinstall Extensions.

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

I tried all of this to no avail. Everything was working fine until the 57.03 update.

If you want, you can uninstall Firefox (you won’t lose settings and data) and install 57.0.2 from here. Be sure to change the Firefox update setting to other than Automatically install updates before uninstalling, or it will update again afterwards.

I’m not sure if this is a new known issue in 57.0.3 that is being worked on, but reverting to 57.0.2 would at least confirm the update caused it. In that case you would need to wait for a next small or the upcoming 58 update.

Reverting solved the problem.. Thanks.

It seems to have gone away with 57.04. Thanks.