Unfortunately stopped working.

[stuffinhere]

Every time I try to open a link, be it trends or a twit, or anything really, the sign-in prompt appears.

[stuffinhere]

I guess it's safe to assume this add-on is abandoned. It does nothing, and no word from the author.

[KerbalSpike]

Have you tried clearing all your cache files associated with twitter?

For me the add-on is currently obsolete, because I no longer get that stupid login prompt anyway. Guess it must have been one of the many changes that have happened since Elon Musk bought twitter?

[11037luna]

The new twitter policy makes it impossible to consult much of the site without being logged in. This extension gets rid of the login pop-up you used to get when surfing freely. But now it's no longer a pop-up but a connection wall.

[adipascu]

Some of the content briefly flashes before the Login Dialog, it's possible we might be able to partially fix this extension's functionality and bring back some data.

[11037luna]

Indeed, I see this behavior on my side too.
I have absolutely no web skills, so I have no idea if it's feasible.
I don't think the redirection to the login page is server-side, so maybe there's a way to stop it.