Diễn đàn hỗ trợ Firefox

I have FullShot 10 which used to show my extra buttons in the FF toolbar. A few updates ago these buttons have disappeared from FF which is really inconvenient. Those buttons still appear in MSFT Edge. I cannot take a screen capture because taking a screen shot automatically makes the FS10 buttons disappear. FF10 is not add-on to FF, it is just a regular program to easy capture graphical screen information. FS10 has not been updated/altered in any way since its installation

I've just finished building a new machine and have installed Firefox:

ESR 45.9.0 (OS/2 port)

I want to sync it with my other machines but, when I try to log in, I get:

Blocked By Content Security Policy This page has a content security policy that prevents it from being loaded in this way. Firefox prevented this page from loading in this way because the page has a content security policy that disallows it.

I know the account is good, I'm logged onto it right now from another (Windows) machine; and I was able to log on and sync from the OS/2 machine this one replaced.

So what can I do to fix this?

Thanks.