This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Sometimes, my c, h, and v keys just randomly stop working on Firefox. What do I do?

  • 3 replies
  • 7 have this problem
  • 3 views
  • Last reply by Hasan

more options

It's not a keyboard problem, my keyboard works fine in other programs; it only happens when I try to type on Firefox. Also, I've had this problem through various versions. What should I do? I really like Firefox, but this can get pretty irritating, and it's pretty much forcing me to switch to another browser

It's not a keyboard problem, my keyboard works fine in other programs; it only happens when I try to type on Firefox. Also, I've had this problem through various versions. What should I do? I really like Firefox, but this can get pretty irritating, and it's pretty much forcing me to switch to another browser

All Replies (3)

more options

I wonder whether they are being intercepted as "hot keys" by an add-on, or whether they have a special meaning to a particular web site. Is there any pattern to it?

You could test for an add-on conflict by using Firefox's Safe Mode.

First, I recommend backing up your Firefox settings in case something goes wrong. See Backing up your information. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)

Next, restart Firefox using Help > Restart with Add-ons Disabled. In the Safe Mode dialog, be careful not to "reset" anything permanently if you didn't back up.

Any luck?

more options

Thanks! I can't try this out right now, since this glitch happens randomly. However, I'll be sure to try it out when it does happen.

more options

Troubleshooting extensions and themes

Check and tell if its working.