Try this:

Go to TB menu > Settings > General

- scroll all the way down and click the 'Config editor' button on the right

- click 'Accept the risk and continue'

- search for accessibility.force_disabled > change the value to 1 > click the check mark > restart TB

Thx, but I can't get that far.

Within a few seconds of opening the config editor I try to change the no. from "0" to "1", but TB freezes up before I can even make the change.

I'm open to other suggestions.

Oh, I take that back!

I tried it again, only this time I decided to "wait out" the freeze, and eventually TB "unfroze"". Then I changed "accessibility.force_disabled" from "0" to "1", saved it, restarted my laptop, opened TB Config Editor to check if the change had taken, and indeed the "accessibility.force_disabled" value was now "1". So let's hope this does something.

Maybe you can explain what "accessibility.force_disabled" is and how changing the value from "0" to "1" may have fixed the "freezing" issue?

Thx again.

Oh, I take that back! I tried it again, only this time I decided to "wait out" the freeze, and eventually TB "unfroze"". Then I changed "accessibility.force_disabled" from "0" to "1", saved it, restarted my laptop, opened TB Config Editor to check if the change had taken, and indeed the "accessibility.force_disabled" value was now "1". So let's hope this does something. Maybe you can explain what "accessibility.force_disabled" is and how changing the value from "0" to "1" may have fixed the "freezing" issue? Thx again.

Setting it to 0 disables some FF Accessibility features such as screen readers. Causing problems by doing that is actually a known bug being investigated.