It sure it is... any idea what it should be? Firefox has a problem with re-assigning keys but in chrome you can change them inside the extension manager area. There's a bug filed for firefox to fix this.
can't bind to Ctrl-` because of some limitation of the browser and Ctrl-Space didn't work for some reason as well. I ended up using (ctrl/comamnd)+Shift+E as it didn't seem to have a shortcut assigned to it and it is very easy to use with one hand. Hopefully that works well for most people. I'll update the extensions today but it takes a few days to get code approval on firefox. Chrome update should be available within a few hours of submitting.
My next feature request would be to show the domain (e.g. "news.ycombinator.com") next to each link, like HN does. That'd let ctrl-F find by domain.
Additionally, being able to sort by domain would be good. Not per-window, but globally. Just a big list of tabs. I'm almost never looking for a particular window, but rather a particular tab of a specific site.
Another minor feature request is to put the total number of tabs as a badge number on the icon itself. I.e. instead of just showing tabist's icon, show the icon with "53" on it if I have 53 tabs open.
Or, y'know, it's pretty good how it is now, so feel free to just ignore this. :)
Those are all good ideas and I am likely to implement them. I published the new version so it should be available within a few days for firefox and within a few hours for chrome.