Thank goodness you have updated for Ff 57. It was showing as "legacy" and I was dreading the loss of TST. But it isn't as good (yet): The cross for closing a tab is on the left, even when the tree is on the right of the browser - I always have it on the right. And the Ff tabs show along the top as well as TST's tree at the side! I know it's early days but I hope you'll fix these two things very soon.

Also, thank you for the instructions for converting session information manually - but I'm fairly tech savvy and didn't find it straightforward. Many users won't know how to start "command prompt", how to find the profile directory, where to look for about:support. I corrected/removed a typo in the code you gave (intelligent guessing based on distant memories of DOS - I decided to risk it! I'm not a programmer) - but not everyone will know to copy and paste that, nor to paste each line one at a time, nor to remove the C:...> from each line. These things aren't obvious if you don't already know. Then I looked at the addon options, after converting the session info because that came up first of all, and saw another way of converting (not manually) but no advice how to do it; maybe that would have been more sensible, I can't tell.

Some user feedback for you, the "non-techy" point of view. :) Overall though, very very glad to have Tree Style Tabs as I'd never want to live without it. :)

UPDATE 18th Nov '17: Just been surprised by a tab opening that told me why the top tab bar can't be hidden. I'm not techy enough to risk the workaround, I have no experience customising CSS. I understand it's the fault of Firefox and can wait... hoping it isn't too long a wait! But in the meantime: (1) Can we have a context menu link to settings, instead of having to open extensions manager, please? and (2) the "Allow to create bookmarks" checkbox (under "Bookmark this tree" in the context menu options) won't allow me to select it, it just blinks and stays unchecked. Oh, and (3) the option for fixing the width back in the context menu - if that's even possible, now we're forced into using the sidebar instead of "real" tabs-at-the-side?

I really don't like any other browsers, I periodically try them all again (whenever I get fed up with Firefox!) - especially since Ff stopped supporting Java - but I don't know if I can cope without Tree Style Tab. Let's hope the voice of the masses is heard, so many people feel trapped and cheated by this unwanted update to 57. Looking foward to whatever you can do to make TST great again. :)

Its my favourite add-on. One star less because the 57 version does not hide the standard tabs.

Great thanks!!!

Have just started using this with FF57, as the "list tabs" drop down that I'm familiar with from v. 56 and earlier seems to have gone AWOL. Tree Style Tab addon meets this need nicely, even if a bit more cumbersome than the old button used to be.

On the plus side, it has more features that I'm guessing I will grow into: it took me a moment to find the "expand/collapse all" toggle, for example, but it's there! The themes are decent, but I would prefer one that didn't differentiate the "sidebar background" from the "tab background" -- perhaps there is one already, though. Also, it would be nice to have an option with more compressed presentation.

On the whole, though, quite a valuable addon, and kudos to the developer for having this ready to run in the new world of Firefox Quantum.

Must have extension! I can not work without it. However, last days, very annoying bug. New tabs are not visible in tree sometimes. They are only in standart horizontal title bar.

It works! And it's a tree! And there are many and sensible config options! And it integrates with containers!! Wooohooo!!!

You have to manually disable the horizontal tabbar at this moment. This is a limitation of the webextension api, not something this extension can currently do something about. But once that's possible, it'll get the final star ;-)

Love the extension. Please find a way to remove the tab bar at the top!

Works well. Just need the top bar of tabs to be hidden.

just got it

Как скрыть вкладки сверху?

Latest update today with the desire for new permissions has caused the addon to fail. Before this I am grateful it was ported over to the new design. This is the main reason I use FF. Please help fix this issue.

Update, just clicked to add again to Firefox and it fixed it. Odd but ieast it is working again.

Please justify in the description why the permission to access data from websites is required. It could deter people from using your fantastic extension, which would be a shame.

For those interested, justification for website data access permission is given here : https://github.com/piroor/treestyletab/issues/1536#issuecomment-344541809

my only issue (after finding the work abouts for the top bar to go away...is making the tabs "thinner". the one bit of code that was here scrunched it all up and i couldn't make hide nor hair out of my tabs. I suppose screwing around with css and figuring it out is going to be something i'm going to have to do...if only to figure out which tag needs changed to get them thinner without everything running together.

Works in FF57, however have an issue with dragging things (like a text link or an image) to become a new tab on the side, I get jumped to the new tab instead of it loading in the background.

This extension is the one of the main reasons I continue to use Firefox instead of Chrome as my primary browser. However, I don't like the new looks for Firefox 57. I don't want to see the "Tree Style Tab" block at the top of my list of tabs, I only want to see my tabs. I also want to get rid of the new-tabs button at the bottom of my list of tabs. I also don't want to see tabs horizontally across the top bar of firefox when TST is open. I still love the extension, and it feels a lot less buggy than it did before 57, but I want the appearance to be decluttered and get out of my way more like it did before.

Great extension. Don't know if it's possible with Quantum limitations to add an option 'Protect tab' (from accidental closing)?

Stil buggy, open a link on a child tab and it will hide, despite disabling the option to not collapse the tab, this happens plenty of times, and it's annoying. Rarely happens but, sometimes the tab will just be out of sight, and have to CTRL+TAB to get to it. There should be a way of resizing them, they are too large for my eyes.

Still good tho.

Dev if you need a showcase, or a way to replicate the collapsing issue, go to the Tree Style Tab extension page (https://addons.mozilla.org/en-US/firefox/addon/tree-style-tab/) and go to More extensions by Piro (piro_or) and middle click in one of them, make sure there are no other child tabs, otherwise it won't work.

Auto-hide was the most remarkable option in this expansion. Now this expansion has lost its significance for me. I beg you to return the necessary property of Auto-hide.

Автоскрытие было самой замечательной опцией в этом расширении. Теперь же это расширение утратило свою значимость для меня. Очень прошу вернуть необходимейшее свойство Автоскрытия.

Great extension, have used it since I discovered it some years ago. I love that it is still being worked on and updated!

Using with Firefox Developer edition, the Firefox 57+ version is pretty good. I'm used to having bookmarks open on the left side and tabs on the right, which doesn't look possible anymore, but I can adjust. The one thing that *really needs to be an option or default* is getting rid of the default tab-strip on top like the old extension did. It would be most preferable if it just showed the title of the tab you are on, like the old extension did.

I can't live without this extension, so I'm putting up with having a tab bar on top AND a tab bar on the side, but that is definitely sub-optimal. I see there's a way to disable the tab bar on top with a "chrome/userChrome.css" in the Firefox profile folder, but I'm on the fence about showing nothing up there (most prefer title of page).

This is a new version so some bugs are expected, hoping for the best, and thanks to Piro for this great tab organizer.

You can disable the horizontal tabs on the title bar by adding the following line to userChrome.css in the Chrome directory of your Firefox profile: #tabbrowser-tabs { visibility: collapse !important; }

If you don't have the Chrome directory and userChrome.css, make them. Go here for information about how to access your firefox profile: https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data

I hope Piro-san will solve this in a smarter way.
And Thank you so much for your hard work. This extension is the reason why I never switched to other browser.

Like many other commenters, the possibility of having tabs
1) on the side
2) ordered as a tree
is one of the main draws of Firefox (privacy enhancements and extensions being another).

However, in Firefox 57 on MacOS, the performance with the add-on seems worse than with the native tabs UI, both at startup (when displaying my 100+ tabs) or when I opend many tabs in a short span of time.

The problem could well be due to the WebExtensions API that it uses and not the add-on itself, but it'd be great if you could confirm that you have thought about optimizations, piroor.

But most importantly: thanks for your work! :)

PS: I also had an issue a month ago, not long after upgrading to v57, where the extension would permanently use up a lot of CPU (the load went down as soon as I disabled it, so the causation link was pretty clear). I ended up solving it by saving all my tabs as bookmarks, clearing the tabs, then restoring them: the previous tree must have been "corrupted" in some way.