Great extension. Just what I need.

Small suggestions:
A search box for tabs would be nice. Custom CSS themes as well. Oh, and the icon is unfortunately black on dark grey when using a dark Firefox theme. Is it possible to fix that?

Excellent work.

Does its job very well. Some features I'd like (tab search and icon-only display for pinned tabs) are still not there but planned for 1.0.0.

I absolutely love this toolbar. Thank you so very much for making, sharing and allowing us to have it for free. Many, many blessings and thanks to you all.

Worked when first installed; does not show up at all now--not on reload, not on install, not after system reboot.
+++++
No way to reply to Croydon's suggestion. so I'm just editing my review.

None of those solutions worked until I resubmitted my review; then suddenly the icon to load the tabs worked. FF Quantum seems to have lots of bugs.

Very nice. :)
Looking forward to future improvements as webextensions itself matures.

Edit:
Found a minor bug. If I drag tabs from one window to another, they don't show up in the VTR sidebar.
Still very nice though! :)

Edit2:
One more minor thing: if you're viewing in Firefox's own Dark theme, the icon is barely visible in the toolbar.

VTR makes Firefox worth running, I'd be lost without it.

Great extension. Can't wait for Mozilla to open up and allow the "lost features" to be restored!

Good but needs a CSS over-ride section in the settings, like the one in Tab Center Redux. I have a 14in screen and I'm not into the little fonts or the default themes. It would be nice to be able to override them via CSS mods in preference section.

I read that some users are having trouble getting rid of the tabs on top. They should know that it's possible to do via userChrome.css. Open your firefox profile folder, make a folder called chrome and make a new text file called userChrome.css in it. In that file add:

#tabbrowser-tabs {
visibility: collapse;
}

is it possible to hide the tabs on the top of the browser? just like it did before firefox57. thanks!

Is it possible to add 2nd function for the toolbar button - dropdown list of tabs? Sometimes it helps to have panel with all tabs on the side, but mostly I need just fast access to one tab, - so list with 4-6 words of tabnames besides favicons (which Firefox tabs can't give by design) would be more productive solution.
Yes, there is such addon already, but design is so awful, that I cant use it.

I'm sure I will love it once I can get it to work. I must be missing s! omething. I added it to Firefox 57. It's enabled. but nothing happens!!! I have closed and reopened Firefox and still no side tabs...

Yay! Thanks for the info. Works great!!

It good, just not what I want - it takes up too much screen space. If it could be made narrower to the point where only favicons were displayed....

On a side note - to hide the tab bar Firefox stuck up top, add the following to your (user profile)/.mozilla/firefox/chrome/userChrome.css file:

/* Hide the tab bar */
#tabbrowser-tabs { visibility: collapse !important; }


If you want to move the tab bar below the toolbar add:

/* Tab bar below Navigation & Bookmarks Toolbars
For best results, show Title Bar or Menu Bar */
#nav-bar { /* main toolbar */
-moz-box-ordinal-group: 1 !important;
border-top-width: 0 !important;
}
#PersonalToolbar { /* bookmarks toolbar */
-moz-box-ordinal-group: 2 !important;
}
#TabsToolbar { /* tab bar */
-moz-box-ordinal-group: 3 !important;

Looking forward to a version that's more compact (or ideally moves tabs to bottom of screen).

This add-on is so good it should be standard for Firefox.

The version before the last Firefox update was PERFECT. However, the new version lacks many of the features it once had. I'm sure the developer is fixing this and look forward to updates!

Pretty good!

Doesn't require a bunch of stupid invasive permissions.

Would be nice if there was a tree-style option.

I like the idea but it doesn't remove the tabstrip at the top of the screen (at least not in FF57) which to me defeats the purpose of having this plugin in the first place...

Firefox should have this feature built in but a fantastic extension will do instead. Clearly in active development as it has survived the WebExtensions transition. Why would you have a 16:9 browser and have horizontal tabs?