When comparing Suspend tab vs uBlock Origin, the Slant community recommends uBlock Origin for most people. In the question“What are the best Firefox add-ons?” uBlock Origin is ranked 1st while Suspend tab is ranked 14th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Saves memory resources of the computer
This add-on makes using the browser faster by suspending the processes that go on in the background tabs, thus, freeing some of the computer's resources that can be used more efficiently.
Pro Light weight
Pro Open source
Pro Promised to remain commercial interest free
uBlock will remain free from any commercial as stated by the creator. uBlock is meant to be strictly for the users and completely free.
Pro Lots of advanced features
For example, you can add more items to your HOST files like disable social tracking.
Pro Thoughtful UI
Its non-invasive design shows you how many times something's been blocked on a given web page – that number quickly jumps to the double- if not triple-digits in some cases.
Pro Can be used on Firefox Mobile
Pro Detects skimming
Skimming means replacing links so that they are rerouted, this is mostly a more friendly way to make money than showing ads.
Pro Edge version
Also available for Microsoft Edge browser.