Overall, better than the Google Chrome app (The Great Suspender) and better than many other options available for Firefox.
- Does what it is intended to do and nothing more (that I can tell)
- Not in the way, doesn't add a useless icon to the toolbar and doesn't have a pop up to add to the CF of syncing your account on a new machine (or fresh install)
- Easily modify the settings to adjust how long until tab timeout.
- Thoughtlessly saves CPU and memory resources in the world of JS hogging memory with its crappy variable definitions that enable hogs (like trackers) to not only spy on you, but use your computer's resources to do so.
- No carryover of settings to new browsers/fresh install (likely more of a Mozilla issue), meaning if you forget to adjust it, everything gets frozen
- Restored tabs do not return to point on page you left reading, so if you are doing something like referencing several pages and forget to pin something, you will loose your place (also likely a Mozilla issue)
- More options would be nice (or plug-ins to other extensions allowing suspension and tab grouping to be united in function)
- suspended tabs have a new (Mozilla defined) url, which throws off tab grouping