If you go to the line extensions.fastdial.options in about:config, you will see the word shortcut there.

I would be interested to hear if any of your settings are stored there.

You could reset this line in about:config or modify string.

But I have the feeling that pressing the reset in Preferences will also reset the same string.

If resetting settings to default does not work then please let us know.

Many thanks

I do not use short cut keys so I am not familiar with their usage.

Did you find any short cut information stored in the line in about:config that I mentioned to you ?

If you create a new Fast Dial cell in the place of where you had deleted previous cell, is it not possible to enter a new string in the shortcut field in Properties for that cell ?

Does that not have the effect of erasing the previously entered string ?

Many thanks

OK

Can confirm that I can get CTRL G to open cell X (as a shortcut)

If I remove the string CTRL G from the box in properties and then restart Firefox, then CTRL G no longer works to open cell X

Can confirm that resetting defaults in Preferences does not effect shortcuts.

I already know how to remove the string to stop the shortcut key from opening a cell but the problem is that the cell is long gone but the shortcut key is still active, preventing me from using that particular shortcut.

OK
I am beginning to understand your difficulty.

I tried the following:

Set up shortcut in cell with Properties for userlogos.org - CTRL M
Shortcut works

Deleted cell with userlogos.org.

CTRL M still calls userlogos.

Create new cell with userlogos as bookmark.
No shortcut appears.

Set the properties setting in userlgos.org cell with no shortcut for userlogos,org
Close and restart Firefox

The shortcut CTRL M seems then to have been erased as CTRL M no longer calls Userlogos.

Set CTRL M as a shortcut in Properties for a cell where ebay is the URL
Restart Firefox
CTRL M now works as a shortcut for ebay cell

I have had but a cursary glance in the Firefox profile as to where the shortcut settings might be stored.

I found this File in Firefox Profile
Extenstions/FastDial/Chrome/Content/Storage.js
which is just possibly storing shortcut info in Bookmarks.
But I cannot read the code.

So it remains possible also that there is a file in the profile that stores the shortcut settings (apart from places.sqlite) but I have as yet not found.

I hope you find that the workaround that I have suggested to you above helps you resolve your problem.

Many thanks

I found that if you had restarted firefox between these steps then the shortcut would have stopped working anyway

OK

so the work around doesn't work

Yes it does...

You say you have two shortcuts that you cannot assign.

Do you happen to remember what URL that these shortcuts were for.

Create a new cell with the URLs in question.
And save without shortcut and that should release the shortcut.
Or that is my impression.

It would seem that shortcuts are possibly linked to the URL

Using the method I described to you I was able to re-assign the shortcut after having deleted the cell, which I think was the original purpose of your enquiry

I can confirm that the shortcut settings are stored in bookmarks. (places.sqlite)
So this information is sadly not available in the Firefox Profile.

Many thanks