Flexible, cool customization, and yes, I only recently realized the niceties of saving/restoring the panel to bookmarks. Author, you're really good, thanks!

p.s. Why autosnapshots don't save cached tabs?

Haven't been using this plugin long but it seems excellent! Totally configurable and well put together.

Когда включено скрытие вкладок неактивных панелей, при переключении панелей с сотнями вкладок потребление оперативной памяти нарастает безлимитно , пока браузер не падает из-за недостатка памяти и подкачки

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.