Just yesterday, I was thinking about something similar for Opera. Opera supports tab stacks (which are great), but many often go unused for days, so I thought a

Just yesterday, I was thinking about something similar for Opera. Opera supports tab stacks (which are great), but many often go unused for days, so I thought about implementing a way to convert a tab stack to a simple tab with an overview of the sites that were open in it. My main problem with this is that you can't order your tabs into groups - the extension may not even make a distinction between regular tabs and pinned tabs.