hello hockeycatcat,

Usually, when you press a "letter" with a control key like "alt", this combination would create a desired action

However, there may be a situation that another program is running on your computer that has some control over the keyboard. For example, some graphics driver that control and customize the display monitor, do have use key combinations too. (As for me, I disable them)

So simply pressing the letter "a" means to me that the keyboard is probably faulty.

I do not know if you are using a fancy keyboard, like a microsoft or gaming kb. But with these you can usually try reinstalling the keyboard drivers. But then again, these keyboards do become faulty.

Try using a different keyboard to test the issue. (As for me, i go through keyboards at least once a year. It is unclear if i burn them up with my usage or they are simply pieces of junk. So when they are on sale for 7 bucks, i usually by 3 of them)

I notice this extension in the troubleshooting information info that could be a possible culprit.

• {name: autoClick, version: 1.0, isActive: TRUE, id: {00f493ab-5f80-4900-be9e-4f210d83bcfe}}

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or userChrome.css is causing the problem.

• switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
• do NOT click the "Refresh Firefox" button on the Safe Mode start window

• https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
• https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

Thank you, cor-el! I removed the AutoClick extension which I don't even remember downloading and it solved all of my problems immediately! I knew my trusty Apple keyboard wouldn't let me down!

Cheers, Hockeycatcat