I am now using uMatrix to manage exceptions for cookies and javascript. Far more convenient because you edit relevant settings while looking at the affected website. It does not even require you to type anything, just point and click. My only gripe is that it does not cover pop-ups, location tracking, or desktop notifications.
In the latest developer version you can delete it 🙂
If you want to see it for yourself; download it, go to settings, scroll down to the Shortcuts section, click the Configure Shortcuts button, scroll down to Speed Dial and delete the Ctrl+Space shortcut.
We can't interfere with Sidebar size, at least not yet... I hope they implement 2 options; width state for each extension and auto-hide. Anyway it's a really good start 🙂
The same just happened to me! And now there's not too much I can do but create a bunch of new folders for all the mixed up bookmarks, which again will sync adding folders where I don't need them to be... How come selective sync is not featured since launching?? This one is a must, otherwise sync is pointless.. Really hoping that this fix will be included in the NEXT update.