Installation aborted because the add-on appears to be corrupt.

You need at least Firefox 128 or 115.13.0 ESR to be able to use extensions.

• https://support.mozilla.org/en-US/kb/root-certificate-expiration

The latest slimbrowser (118..0.0.0) only uses FF 115.0 as an engine. All my FF add-ons stopped working today, so I assume this is the issue.

Does this mean slimbrowser users cannot use FF add-ons until they make a release based on FF >115.13?

Thanks.

The latest slimbrowser (118..0.0.0) only uses FF 115.0 as an engine. All my FF add-ons stopped working today, so I assume this is the issue. Does this mean slimbrowser users cannot use FF add-ons until they make a release based on FF >115.13? Thanks.

You could look at the last section of the following article: Add-on signing in Firefox.

Thanks for the link. I already did that. Doesn't work.

xpinstall.signatures.required to false extensions.langpacks.signatures.required to false. restart.

Looks like slimbrowser users are stuffed until the next update.

The current Firefox 115 ESR is 115.21.0esr and will be updated til 115.27.0esr in August unless Mozilla extends updates again.