Hello isratom,

It sounds like you may have a sticky F2 key (the keyboard shortcut for the developer toolbar is Shift + F2).

Would you try pressing the F2 key a few times to see if that solves the problem  ?

Pressed F2 key several times, F2 key does not respond and shift still opens developer window

I just found out that the developer toolbar has been removed :

https://www.ghacks.net/2018/05/21/firefox-62-developer-toolbar-removal/

So, this can't be the developer toolbar.

Looking at your screenshot I can't figure out what it is I'm looking at (I don't understand your language), but maybe if you'd try to press the following keys a few times :

F7 (Style Editor = Shift + F7) F5 (Performance = Shift + F5) F9 (Storage Inspector = Shift + F9)

If none of these work, then I can only hope that somebody else will come to your rescue, cause this must be really annoying.

Prssing shift Alone does exactly what pressing shift+f7 does

isratom said

Prssing shift Alone does exactly what pressing shift+f7 does

Ahh, Style editor .....

https://www.ctc.ca.gov/site-information/accessibility/key-firefox

(see under "Tools")

Pressing the F7 key a few times doesn't change anything  ?

Make sure that you don't enable caret browsing though :

https://www.askvg.com/how-to-turn-caret-browsing-on-or-off-in-mozilla-firefox/

Just to make sure that you didn't inadvertently mark my last post as Chosen Solution :

Did pressing the F7 key a few times work  ?

No it didnt, for a moment i thought it did but its as was before

Tried to shhot a video just to find out i can't send it

isratom said

No it didnt, for a moment i thought it did but its as was before

Bummer  ! Would you please remove the Chosen Solution mark from my post ("Undo" button to the right of that post)  ?

I will call for help, cause I'm all out of ideas (so sorry .... ).

Unmarked the solution. Thank you for your help.

Hi isratom, Shift by itself definitely shouldn't open any panels in Firefox.

Since this started, have you already tried shutting down and restarting Windows 7, in case there is a component running in memory that has gotten corrupted?

Do you recall any software changes around the time this problem started? That could include an update to Firefox, to Windows, or to your keyboard software.

If this appeared after a Firefox update, I suggest:

Clean Reinstall

This takes about 5 minutes. It's not about your settings, it's about making sure the program files are clean (no inconsistent or alien code files). As described below, this process does not disturb your existing settings. It's not essential to uninstall Firefox, but you can if you like, saying No to any request about removing personal data.

It only takes a few minutes.

(1) Download a fresh installer for Firefox to a convenient location:

https://www.mozilla.org/firefox/all/

Note: Currently, your Firefox identifies itself as the 32-bit version.

(2) Exit out of Firefox (if applicable).

If you use Microsoft Office, please change your default browser to Internet Explorer temporarily before the next step.

(3) Using Windows Explorer/My Computer (hold down the Windows key and press E to launch it), right-click > rename the program folder as follows (you might have one or both):

C:\Program Files (x86)\Mozilla Firefox =to=> C:\Program Files (x86)\OldFirefox

C:\Program Files\Mozilla Firefox =to=> C:\Program Files\OldFirefox

(4) Run the installer you downloaded in step (A). It should automatically connect to your existing settings.

Any improvement?

Did as explained

Same problem with Shift kay + New problem.

When i try to reach any link in your message using FF it opens the destination lin/page but starts an unstopoble reload action enabaling any further actions.

Had to write this message using Chrome browser.

It sounds like Firefox is confused about the input from the function keys on your keyboard for some reason. The Storage Inspector is called up by Shift+F9. Reloading can be triggered by the F5 key.

Do you have a specialized keyboard such as a gaming keyboard?

If you have the Microsoft ergonomic keyboard, it has an F Lock key which disables the function keys. If you have that option, does it make any difference?

Boot the computer in Windows Safe mode with network support to see if that has effect in case other software is causing problems.

• http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/
• http://www.7tutorials.com/4-ways-boot-safe-mode-windows-10

I am using a simple 4Tech keyboard. Nothing fancy.

Could the same keyboard react diferently to different browsers? I have none of these issues with Chrome nor Internet Explorer

I've never heard of this before, so I definitely have no idea what's causing it. In years past, low batteries in a Bluetooth keyboard caused problems in Firefox. Stuff happens.

'Don't know whether you're using a mouse or not, but if you do, would you try this :

Type in the address bar about:config and press Enter (promise to be careful, if asked)

Type in the search bar and look for the preference :

mousewheel.with_shift.action

and change its value to 0 (zero)

Then close and restart Firefox.

If it doesn't make a difference, then change the value back to its default.

It's a mere stab in the dark, but at this point worth a try .....

Tried changing the Mousewheel value, no luck.

Went out, got myself a new keyboard.

Issue solved

isratom said

Went out, got myself a new keyboard. Issue solved

That must be a huge relief - well done  !

Woud you please mark your last post as Chosen Solution  ? (button to the right of your post)

Enjoy your new keyboard  !