I just want to be able to drag a tab straight into a snap zone with Firefox (like can be done w chromium browsers). Instead I have to drag the tab out, then click the new window and drag that where I want. And with the frequency of tab shuffling I do, even this minor inconvenience is pretty annoying. Oh, and it’s been in the bug tracker/feature request for 15 years.
I’m taking a shot at fixing it myself but this is not my forte.