We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Why is the developer window flickering at the bottom of my screen - again???

  • 1 reply
  • 1 has this problem
  • 2 views
  • Last reply by cor-el

more options

Holding the Ctrl key stops the flickering (attempting to load the developer screen) and gives my eyes a rest...however, no other key can be pressed at that time.

Pressing the X close button in the top right of the developer screen does not close it either.

Just started today after an update. Windows 7 Home Edition

Holding the Ctrl key stops the flickering (attempting to load the developer screen) and gives my eyes a rest...however, no other key can be pressed at that time. Pressing the X close button in the top right of the developer screen does not close it either. Just started today after an update. Windows 7 Home Edition

All Replies (1)

more options

You toggle the developer toolbar with the Shift+F2 shortcut key, so maybe there is a problem with the keyboard and Firefox sees the keys as pressed.

It is possible that some of the (status) keys have the wrong state and Firefox sees them as still pressed.

Try to press all the status keys (Shift, Ctrl, Alt) a few times to see if that helps to recover from this. If it doesn't help then close and restart Firefox or reboot the computer.