This is the closest thing I can find as a replacement for Tabli (Chrome Extension) on Firefox. Job well done.

Great potential extension!!! But do you really think that icon is enough to recognize the needed tab??? So, please, add some views with tab captions, urls (most likely, cut). Also, don't you think that Close window button should be placed in upper right corner as a standard? BTW, very nice look! UPDATE: It appeared I'm wrong and there's a mode which shows the tab names!!! SUPER ADDON for sure!

https://github.com/stefanXO/Tab-Manager-Plus/issues/148 seeks a user guide.

I love that I can get a birds eye view of my various windows, and delete or move tabs without having to actually open or visit them. I wish the group label and color were visible when I go back to live browser-life, but not sure if that's possible. Also, the labels/colors don't seem to stick, not sure why.. deleted cookies?

With my 1K open tabs (of which all I need of course) this is the best manager I've yet come across. The deletion of duplicate tabs is a life-saver! If the developer ever opens up a Patreon account I'll sure as hell will give him/her my money since again, this piece of software saves my life. Btw, dark-mode is also supported by default!

> Many people will click the red "X" button automatically
Yeah I also think that the UI is a little confusing. The 4 window icons are too prominent, big and colorful compared to HOW OFTEN (I think) they are used. Especially the close window one. I would put these inside an ellipsis menu in the top right.

Bug: after picking a window color, the view doesn't return to show all tabs. I need to open the picker dialog again and click X to return. This is in contrast with renaming a window, which correctly returns to the main view.

The color picker dialog is really confusing. I don't understand what logic the pre-selected pastel colors are ordered by, e.g. the blue hues are all over the place.

I don't like the tinted hues of the dark mode. I would prefer a dark gray mode, not a "dark green mode", if you see what I mean. The color scheme is just unnatural, including the windows colors.

I hope these issues can be fixed in the future, otherwise it's a really useful extension to cut through the tab chaos!

After installing, I wanted the sidebar to go away, so I pressed the red "X" button. All of my 415 tabs closed. I see now the top "X" for closing the sidebar. Too late for me, and I've lost productivity trying to get those tabs back. ____ Wish the pop-up forced you to read the deletion notice by having another button to confirm. Many people will click the red "X" button automatically without seeing the message. The red button shouldn't assume that you will hover over it to get the notice. I'm sure this has happened to many others. Heads up.

One tab at a time does what I need. Deserves a 5 star
the extension is really useful for focusing on one problem at a time. Instead of having too many tabs.
This extension is a must have. i thank it should have a different name though.

This addon is great for people like me who routinely end up with way too many tabs open. I keep it open on the sidebar, and it has really helped me find the tabs i'm looking for. I like to use the search bar at the bottom, it will highlight the tabs your looking for. It also shows the tabs that are open in other firefox windows, which is something else i really like. Thanks to whoever made this.

Great extension, very useful. Feature request: sync my settings across my browsers on different devices when I sign in to Firefox & automatically toggle dark/light mode based on system theme

This is SOOOO CLOSE to what I've been looking for. And that is to have categorised windows. For example 'social media', 'development', 'devops', 'home', .... and to get any new window that opens to land in the correct one of these. Currently the allocation is manual and theoretically once setup it wouldn't be much work at all. Setup works in TMP, excepting it is NOT PERSISTED. The tabs will remain together but the newly added titles do not stay. Once Markus adds a few more features on top of the *fixed version* of this plugin we will be well on the way to utopia. At that time my 4 stars will become 5.

New Features I'd desire to see include:
1. Keyboard shortcut to enter the 'search' input (Oo I found it - Shift-CMD-M by default on Mac)
2. Auto-assignment to categoriesed windows of newly opened URL. Initially can be simply based on pattern matching or base URLs. Work up to baysian learning, or based on other people's classifications.

Other Issues
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1. 26.11.20 - One month later. Tonight either TMP or FireFox or another Addon (but i've never seen this happen before installing TMP), nearly every tab from every window moved to the one window. It left 1 or 2 tabs behind in each window. Pretty annoying as I purposely organise the tabs into windows.

This is an ok organizational tool for, like, a sitting. But for some reason every time I leave and come back to my computer after a day or two the headings I've set up for each open window just disappear. I have 4 windows with multiple tabs open in each, grouped by the different things I'm using those tabs for. I want to be able to easily and quickly go to the right window for what I want to do, but I always have to start by re-naming and color coding everything because it just... loses those settings after a while. It's annoying enough that I might look for a different add-on for this eventually.

Tab Manager Plus 5.2.0 is a Special Operations tool for "multi-tabbers" like me. The "Limit Tab Per Window" feature is well worth the $25 I tried to donate. Great job, Markus!

Almost just what I'm looking for... would be neat and I guess more transparent to have actual screenshots of the sites in the overview and not just icons.
I know would take up more space but doesn't need to be detailed, just a much better hint to remember what the tab is about.
Any plans for that?