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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Why does my Mozilla Firefox window screen turn black when I open it?

  • 3 fhreagra
  • 128 leis an bhfadhb seo
  • 223 views
  • Freagra is déanaí ó santo.sg

more options

When I open Mozilla Firefox, it starts off white, then it turns black. There are no buttons whatsoever that you can click on, except the minimise, maximise, and close buttons. Why is this happening?

When I open Mozilla Firefox, it starts off white, then it turns black. There are no buttons whatsoever that you can click on, except the minimise, maximise, and close buttons. Why is this happening?

Réiteach roghnaithe

Can you start Firefox in Safe Mode by holding down the Shift/Options key?

You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.


It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access to install for Firefox and the plugin-container process and the updater process.

See:

Read this answer in context 👍 7

All Replies (3)

more options

Réiteach Roghnaithe

Can you start Firefox in Safe Mode by holding down the Shift/Options key?

You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.


It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access to install for Firefox and the plugin-container process and the updater process.

See:

more options

Thanks so much it works now. :)

more options

The Mozilla Foundation need to be more helpful.

Firefox (Desktop) has been the default browser for long. But for sometime including the current version Version 34.0.5, the whole window goes black after a while since opening.

Once it gone black, we have no means to close it from the browser window itself as there are no buttons whatsoever that you can click on, except the minimise, maximise, and close buttons.

Solutions given above are not suggesting what to do from the blacked-out Firefox (Desktop) browser window: How to close etc.. Or we loose all the works works we have done halfway.

When all other browsers could work well with the security software (firewall, anti-virus), why only Firefox (Desktop) browser is behaving like this? This brings down the reliability/ dependability / usability of the Firefox (Desktop) browser.

The Mozilla Foundation may come up with right solution. Thanks.