Brought me back to Firefox Rated 5 out of 5 stars

After slowly sliding to Chrome, I am back and the reason is this add-on! Absolutely love it, because I can see all my tabs at a glance and related tabs are grouped together.

TST is the only reason why I use Firefox Rated 5 out of 5 stars

Helps me group tabs by topic and understand the chronology of opening tabs.
It perfectly fits to my way of browsing - open everything I see relevant and review each tab by tab.
This plugin is the only reason why I continue to use FF, everything else is far behind the TST.

Rated 5 out of 5 stars

this is the only way i can use the browser

Always the first addon I install Rated 5 out of 5 stars

Can't live without Tree Style Tab! Please please please please please keep it working when everything changes!

(Request: a keyboard shortcut to toggle expand/collapse current tree. Definitely not worth losing a star for, though.)

can't collect the tree again. Rated 5 out of 5 stars

after expand the tree and close the firefox 64 55.03,the tree should belong to the father tree ,but in fact the sub tabs all become the father tab and isolated,it also happened in windows 10 and Mac OS Sierra.

This user has 2 previous reviews of this add-on.

Great extension, but not looking right in FF55 Rated 4 out of 5 stars

Great extension! One of my go-to add-ons for new installs.

Had to do a refresh for FF 55 and when it reloaded the "Mixed" Skin is showing the same as the "Flat" skin. Also needs to be updated for the 57+ FF update rules.

Essential Rated 5 out of 5 stars

The only plugin I really need (and love)!

webextension works well Rated 5 out of 5 stars

I am trying webextension version of TST in firefox nightly. It is Exciting!

They'll pry my tree-style tabs from my cold, dead hands Pt.2 Rated 5 out of 5 stars

I just wanted to validate and confirm the pain of the previous reviewer in response to opening the new fireox to a shitty row of horizontal, unorganized tabs. I love you Tree Style Tab.

They'll pry my tree-style tabs from my cold, dead hands Rated 5 out of 5 stars

Occasionally I will have to work in an environment that's not my own and the most painful part is dealing with 300 horizontal tabs that only can show the favicon with no hierarchy.

Best add-on for managing tabs Rated 5 out of 5 stars

I love opening a hundred of tabs. And I really adore this add-on! It helps me to keep all tabs sorted by my taste and which is more important - it saves my time looking for the tab I do need right in time.
Thanks a lot for providing and supporting this product!
I hope you update the addon for further comfortable work in new versions of FF 57+!

Keystone of addons. Rated 5 out of 5 stars

Thanks alot for reworking it for WebExst, was realy worried about some devs abandon their addons due to chromifications and lack of time to completle rewrite code, if its possible at all.
I use TST since 2008 and absolutle love it.

Does not work any more on FF 55.0.x Rated 2 out of 5 stars

After updating FF from 54.0.1 to 55.0.3 it does not work any more.
Tree is broken, groupings work with problems, roots and children of groups is mixed up and change their position.
In sum tree does not work like before.
And I can`t understand how to reset settings and tree to default. Maybe this would help.
Mark before - 5+, now - 2.
P.S. Who know how to reset settings of this add-on, please write in comments.
P.S.S. After reverting to FF 54.0.1 everything is fine again. Will wait for fix.

This review is for a previous version of the add-on (0.19.2017090201). 

Forgets all tabs between each session Rated 1 out of 5 stars

Recently broken (Firefox 52.0.2).
After some digging I found that this addon is the one responsible for forgetting all my tabs. Every time I close and reopen firefox I get lots of about:blank-pages instead of remembering my tabs from last time.It works fine if you never close your browser.
I used to love this add-on, but this makes it unusable.

This review is for a previous version of the add-on (0.19.2017090201). 

Broken for Firefox 55.0.3 Rated 4 out of 5 stars

Broken for Firefox 55.0.3, hope you can fix it. Thank you.

This review is for a previous version of the add-on (0.19.2017090201). 

Yep Rated 2 out of 5 stars

Still broken.

This review is for a previous version of the add-on (0.19.2017090201).  This user has a previous review of this add-on.

The most important add-on for Firefox Rated 5 out of 5 stars

This adds the key capability that differentiates Firefox from other browsers. Some have a similar characteristic (Vivaldi) but suffer from the flaws in the Chromium browser.
I cannot continue with Firefox 57 if this extension is not updated to be compatible. It is essential.
Without it, I will not update to FF57, and/or will have to make do with Vivaldi.

This review is for a previous version of the add-on (0.19.2017090201).  This user has a previous review of this add-on.

My Essential Firefox Addon Rated 5 out of 5 stars

Fundamentally changed how I use the internet and conduct my research. Took some time to evolve my workflow, but it truly is a remarkable productivity multiplier.

200+ tabs across 8 windows is my norm, and it feels like the most natural way to work. Can't imagine trying to browse any other way. My wholehearted thanks to Piro.

This review is for a previous version of the add-on (0.19.2017061601). 

Rated 5 out of 5 stars

Great addon. One issue - If I manually collapse the tab bar, I can't seem to get it back. I have to restart Firefox at that point.

This review is for a previous version of the add-on (0.19.2017061601). 

Rated 5 out of 5 stars

Very good

This review is for a previous version of the add-on (0.19.2017061601).