Looks like there was something strange going on with the theme. As i switched from default to another and then back to default, the Dropping worked again.
There are/were some issues with links on php-generated websites too. Namely the page of Wordpress and some phpbb-sites. I will report those, if they happen again. -- Adresses cannot be dropped to the Bookmarks Toolbar https://launchpad.net/bugs/62798 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
