Firefox has some very strange problems when visiting certain websites
I just upgraded to to Mac OS Catalina and Firefox 75, and I've noticed two very strange and specific problems on certain websites.
-On Wikipedia the number 9 is displayed as an underscore _ So the year 1669 looks like 1__9, etc.
-On Blogger, in the compose mode, typing lowercase y makes nothing appear, and typing lowercase z produces quotation marks!
I tried using a different (brand new) keyboard, and the problem remained.
I tried those two websites in the Safari browser, and there were no problems.
Krejt Përgjigjet (3)
Clint B said
. . . . on certain websites
How many websites are affected? Are they related?
Type about:preferences#content<enter> in the address bar. Across from fonts and colors, press the Advanced button. On the bottom, turn on Allow Web Sites To Choose Their Own.
Fonts Information - Detected via Flash http://browserspy.dk/fonts-flash.php?detail=1
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.
- How to clear the Firefox cache {web link}
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}
Note that this symbol is actually a long dash.
See also:
- /questions/1268528 when I type the number 9, the underscore symbol appears