Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

0xc000009a error - have to restart PC to fix

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by McCoy

mascan42
mascan42
more options

I'm seeing this 0xc000009a error come up when starting Firefox if I leave my PC on for a long time. Restarting the computer solves it, but it always comes back again the next time I leave the PC on for a while. The computer isn't going into hibernation, only power save on the monitor. And it never happens if I leave a Firefox window open when I step away. Any idea what this might be?

BTW, this is a new PC, less than a month old.

I'm seeing this 0xc000009a error come up when starting Firefox if I leave my PC on for a long time. Restarting the computer solves it, but it always comes back again the next time I leave the PC on for a while. The computer isn't going into hibernation, only power save on the monitor. And it never happens if I leave a Firefox window open when I step away. Any idea what this might be? BTW, this is a new PC, less than a month old.

All Replies (1)

McCoy
McCoy
more options

mascan42 said

BTW, this is a new PC, less than a month old.

Hello mascan42,

Just in case your PC is a Lenovo; please see this thread ....