This is my favorite extension for any browser. I was mad the first time it crashed and when I noticed the high CPU usage but the solution is to backup your URLs to notepad using export in onetab before you reach 400 and then remove them from one tab. They are easily imported/exported back and forth. With notepad you can save different files for each subject.

Excellent..., Excellent..., Excellent...

es muy buena

super tool!

I don't normally write reviews, but this has been super useful for somebody like me, who likes having lots of tags, but also values organization. I use it to switch between my 'working' tab groups for each of my college classes

A must have when doing research.Easy to use too.

Great app, always helps me to save context for later