Your example screenshot doesn't make it easy to locate your tabs of interest visually
Speed Dial has its own tab grouping, but it represents tabs set up within Speed Dial itself vs. currently running tabs. Personally, I don't have a lot of need for tabs in standby mode. I would rather either open them all at once if needed or close them when done! But everyone is different, so I am glad there are choices.
I'm not saying Speed Dial does everyone I want either, there's a couple of features I'd like to see but haven't found yet:
- Sync with bookmarks
- Open multiple dials at once. (and the first improvement would actually enable the second one through middle click as mentioned earlier, but it would be good to be able to do it from the Speed Dial group page as well)
- Remember last tab group (and not doing this natively is probably a byproduct of Speed Dial tabs not using real Firefox tabs and therefore unable to take advantage of Firefox session restore, which I prefer to turn off anyway
This all definitely gets me thinking though, the video shows the Tab Candy developer is not short on ideas for improvementl, that's a great sign.