Doesn't work in Firefox 108 with userChromeJS enabled

[Aleksandra0056]

I installed the caa add-on and I can't access to the caa library. The “caa:” URL protocol is not supported.

[Aleksandra0056]

Nor the button doesn't appear.

[reallyuniquename]

This addon is only for pre-quantum Firefox and its forks. I don't think you can run it even wtih userChrome JS.

[Chirunos]

@patricek0056 what userChromeJS script have you installed? I'm pretty sure none can add support for legacy extensions in Firefox Quantum. Firefox Quantum (~58+) doesn't support legacy add-ons (the ones here) at all. There are few active web browsers on which you can install and use this extension: Waterfox Classic, Basilisk Browser and Pale Moon