I admit that I didn't dig tremendously deeply, but I believe that "versions" means NOT 66/67/68, but the different versions of Firefox that reside on different devices, i.e. the desktop version and the mobile version....

If you haven't done so already, I suggest that you take your issue to Firefox Support.

Would you mind posting a screenshot of that panel?

If necessary: To post a screenshot...
  1. Go to https://imgur.com/upload.
  2. Either drag your screenshot into the window or browse for it.
  3. Click on "Copy" in the next window to copy your screenshot's URL to your clipboard.
  4. Create a link using FTM's "Create a link..." tags...2nd icon from the left.


The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire