I like this addon, but the lack of a user guide is frustrating. I only learned how to use it by reading the author's response to reviews here

Main thing I want from a tab manager is for it to auto-save sessions so they can be restored when Firefox inevitably fails to reload them after a restart. This does not appear to do that. It appears to do nothing but facilitate navigating between tabs, & suspending some tabs that are not currently needed. It seems to do those things OK, but they just aren't nearly as important to me as the baseline functionality of saving a list of open tabs to be restored on restart.

It keeps opening the what is new page on github and it is always the same content. Last update on 13.8.22? why display it if nothing has changed since then? make it stop

Nice and simple with some interesting features, only.. not confident enough to use it when there's no info re saving/restoring sessions - and nowhere I can find to ask questions about this??

Unable to drag tab from one window to another window.

It cannot do that much. There are better extensions for the same functionality and more.

That could be an advantage if you're looking for a minimalstic tool.

I like what this add-on can do but it is EXTREMELY laggy and unresponsive. I even turned off tab previews and tab details which helped a bit but it's still extremely laggy. I'm running on a MacBook Pro 2019 model with an 8 core CPU, and when I open this extension's popup window, it nearly pegs an entire core. I'm usually around 5-6% average usage on my CPU cores during normal browsing, but when I open the popup it shoots up to 15-25% average. You do the math. To be fair, I have 8 windows open across 2 Spaces, but each window has less than 12 tabs, and honestly if you're using a manager extension like this you've probably got at least half as many windows and tabs as me. I hope the developer works on improving the performance of this extension. It's very nice and only hindered by the performance. I will still use it.

edit: thank you developer for the response. I look forward to any and all performance improvements!

Edit 2024/11/15: Thank you for all your continuing hard work on this!

Sadly since v3.2 or v3.2.1 it's now become somewhat unusable on FF v115 esr. It pegs the cpu for a long time and doesn't show tab preview until some time later. I have options 'show tab detail', 'show tab preview' enabled, while 'hide popup after selection' is disabled.

Clicking on a tab to switch to it, switches to the tab correctly, but list of tabs inside tabby jumps to a random tab on another window.

Don't know what has happened to cause cpu to be heavily used after opening tabby? I thought v3.2 should have been faster?!

btw: I have several hundred tabs open and 8 windows.

---

Great addon - this is exactly what mozilla/firefox should have implemented instead of the fairly useless "List all tabs" drop-down menu with rubbish UI.

I love that this allows you to move/reorder tabs inside this menu, as well as search for tabs within the menu, and hover over to discover which tabs are active/inactive, together with screenshot of the active tabs.

Again, this is exactly what Firefox should already have.

I few suggestions for improvements however...

🔷 the right-click "Send tab to..." menu option which appears after installing this is really quite annoying, so I wish it were possible to disable it.

🔷 it's great that you allow adjusting font size for the list, but the drop-down height should occupy the entire height of the screen, not just up to 600 pixels!

🔷 hovering over the tabs in menu should also highlight the tab in the window, exactly as if you were hovering over with the mouse. Because a user may have countless tabs open from the same domain, which uses the same favicon, so it becomes confusing which has been selected.

🔷 unlike "Firefox user 15037318" below, I don't agree that it should count pinned tabs, as you can only have so many, unlike tabs. It would be more useful if the icon (or menu) displayed total number of tabs / windows along with number of inactive tabs - similar to the "Tab Tally" addon.

🔷 It would also be useful if the menu also highlighted any duplicate tabs (based on url and title).

Otherwise, as mentioned, exactly what mozilla should have implemented for listing tabs.

Thank you Shiko 👍

A pop up size is too small and inconvenient with my 600 tabs. Just consider simple task of moving 5 tabs from Window 7 to Window 13.
The app makes it impossible to handle.