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.

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.

installed Firefox Setup Stub 34.0.5.exe-screen @top flickers, reverts to Firefox Setup 21.0.exe now

  • 1 reply
  • 5 have this problem
  • 1 view
  • Last reply by ideato

helenang
helenang
more options

installed 34.0.5.exe on 18/12 - the top of screen keeps flickering, so annoying! so i've reinstalled 21.0.exe which does not flicker.

installed 34.0.5.exe on 18/12 - the top of screen keeps flickering, so annoying! so i've reinstalled 21.0.exe which does not flicker.

Chosen solution

Hello helenang, please update Firefox to the latest version (21.0 is unsupported and vulnerable), and then disable graphics hardware acceleration.

You might need to restart Firefox in order for this to take effect, so save all work first (e.g., mail you are composing, online documents you're editing, etc.).

Then perform these steps:

  1. Open Firefox Options window as follows:
  2. click the menu button New Fx Menu and select Options .
  3. In the Firefox "Options" window, click the Advanced tab, then select General.
  4. In the settings list, you should find the Use hardware acceleration when available checkbox. Uncheck this checkbox.
  5. Now, restart Firefox and see if the problems persist.

Additionally, please check for updates for your graphics driver by following the steps mentioned in the following Knowledge base articles:

Thank you.

Read this answer in context 👍 4

All Replies (1)

ideato
ideato
more options

Chosen Solution

Hello helenang, please update Firefox to the latest version (21.0 is unsupported and vulnerable), and then disable graphics hardware acceleration.

You might need to restart Firefox in order for this to take effect, so save all work first (e.g., mail you are composing, online documents you're editing, etc.).

Then perform these steps:

  1. Open Firefox Options window as follows:
  2. click the menu button New Fx Menu and select Options .
  3. In the Firefox "Options" window, click the Advanced tab, then select General.
  4. In the settings list, you should find the Use hardware acceleration when available checkbox. Uncheck this checkbox.
  5. Now, restart Firefox and see if the problems persist.

Additionally, please check for updates for your graphics driver by following the steps mentioned in the following Knowledge base articles:

Thank you.