Some web text Not displaying proprerly after RAM upgrade

[ChrisDx]

Hi; I have just upgraded my RAM from 12 to 16 GB. Now, some text glyphs display on Firefox as a box with a question mark. The same webpages on Safari, Chrome, Opera display as they should. I am on MacOS 10.11.6 and Firefox 56.0. I have posted on Moxzilla Forum with no response. Any help is much appreciated. Regards; Chris

 

[BrianBaughn]

Doesn't sound like any RAM issue I've heard of...but you could run the Apple Hardware Test.