Both of the FAQs currently on the site are variations on "why does it not work in Safari?" (extensions won't run in PWAs saved to your home screen either, you h

Both of the FAQs currently on the site are variations on "why does it not work in Safari?" (extensions won't run in PWAs saved to your home screen either, you have to manually create your own Shortcut if you want a home screen bookmark to open YouTube with the extension active), it also has a video example of enabling the extension: https://jbscript.dev/control-panel-for-youtube#safari-faq-post-install https://jbscript.dev/control-panel-for-youtube#safari-faq-po... The most recent Firefox version of the extension actually reverted it from MV3 to MV2 because Firefox doesn't prompt you for permissions on install either for MV3 extensions, so it was also disabled by default.