the plugin is probably more comfortable, but I think "bookmark all open tabs" chrome and firefox have. something I recently learnt is that in firefox you can search all open tabs by starting with % in the adressbar
well true but the advantage of the plugin is more that its not really that persistent.
For instance: when I research a new topic i sometimes have 20 open tabs out of which i really want to bookmark none, but as long as i am working on the issue i want to be able to use them still. This is where onetab shines, because it lets me remove all, lets call them virtual bookmarks, that have been gerated by one specific window. Henceforth i can use a window more like a topic of interest and am totally able to "hibernate" on research. and when i come back i just click "open all tabs" on the index and will be goot do go:
I believe my actual point was, that I have much more stuff that i like to store temporarily, instead of a "permanent bookmark" and the ability to remove bookmarks by "window" really allows me to ogranize myself better.
