Highly recommend this project - features full customization code-able & edit-able with standard web css style languages. Stable, reliable, & top notch.

!#note: you can also find their github link for the more advanced users linked on the main page.#

https://github.com/mbnuqw/sidebery

Excellent, thank you <3

Very useful. I love the option to pin the pages. Also, it's great to be able to save the groups to Bookmarks. And it's possible to update them if you have made any important change in the group.
Simply, fantastic one.

Very useful and more customizable than others side tabs extensions.