Loving the tab groups feature, I consider it and would like to use it as a merge between bookmarks and tabs. I have created a few groups (a ToRead, one for each of my current projects, one for news) and I would like to use the actual panorama view of all my tab groups *as the default view* I get when I start Firefox. Kind of like a speed dial. Is this currently possible? Something like supply "about:tabgroups" as the homepage. I tried searching for solutions and extensions to do this, but was not able to find anything. Thanks for any pointers!