Recommend you try this.... Rated 5 out of 5 stars
If I could give more stars I would.....
As others said, it does exactly what it says it does as I was very skeptical but decided to try this anyway....And with many, many tabs- not just 3 or 4 open
And Pale Moon x64 users: no problems at all / no compatibility 'bugs' / whatever that is called when is still usable but is/are small thing(s) not quite right- @ least for me & sites I frequent. Have not yet used in Pale Moon x86
Thank you for developing this and sharing this