Jan David Hauck

That would help indeed, yes.

Hmm, the only issue that I now see with this solution is that it opens all files in individual windows by default (I understand why this is so, as they were added individually to a folder). But maybe it'd be possible here to have an option to open in tabs instead of windows?

Oh, excellent, I had no idea! That does help indeed.

I really understand the general goal of keeping it simple. I just thought this would be a minor addition in terms of UI, but which could really vastly streamline certain workflows (see above). Would you maybe consider at least changing the behavior of adding a bookmark such that it replaces the previous one (of the same name)? So that I don't have to open the bookmark organizer window every time I update a session... Or, maybe an alternative way I was thinking which could accomplish the same thing...

Oh that's sad. I think it would be a great enhancement. At least an "Add to Session Bookmark ..." function would be really useful in my opinion. Currently, when I have a PDF open which I want to add to a session, I have to then also open the respective Session, if I'm working with tabs I then have to move the PDF to the window with all the tabs from given Session, then I have to click to add the Session bookmark. Moreover, currently it's not even possible to simply replace an old one. When I click...

Add to/ Update Session Bookmark

It looks like the last nightly resolved it! (at least on my end) Thanks very much, as always!

Yes, I just add a default, empty web group, but No, it does not happen when I add one in a new empty document!! In a new empty document all runs smoothly (both, adding a web group, but also navigating to a page) No web plugins installed. Anything else I might try? I'm still on Mojave. BibDesk 1.7.3. The other user reprted it having regressed. I just downloaded 1.7.1 and 1.7.2 and indeed, 1.7.1 works totally fine, but 1.7.2 gives the problem. Weird. Hope this helps.