Rated 3 out of 5 stars

Looks very good, but in Firefox 30 on Ubuntu 12.04 causes very high CPU load (takes 50-100% of one core), needs to be fixed.

Rated 3 out of 5 stars

Great change to the UI, but takes a lot of CPU on the current version of FF (30.0, Xubuntu) - enough to make this unusable on a laptop.

causes high prozessor load? Rated 4 out of 5 stars

Hi, this is a Must-Have-Addon, but: Since Fx29 my Firefox needs at least 40-50 CPU-% with this addon activated. Without it is normal (maybe 5-20). Please check this, thx!

PS:
My System: Lubuntu 14.04, Fx 30.0, Vertical Tabs 0.10b1

This user has a previous review of this add-on.

A must have! Rated 5 out of 5 stars

** Go to versions to get one that works with new australis theme**

Now i don't have clutter!! Thanks!

Don't work with new version Firefox Rated 1 out of 5 stars

Good addon, but Don't work with new version Firefox! =(

Not updated for Aurora Rated 3 out of 5 stars

This hasn't been updated in a while but if you're technically savvy, there's a fork on github that works nicely with the new FF ui. https://github.com/darrinhenein/VerticalTabs

This user has a previous review of this add-on.

it does not work for some time Rated 3 out of 5 stars

show the comments before - is someone able to manage it soon ???

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

Rated 3 out of 5 stars

Vertical Tabs has been an essential part of my web browsing experience since it was released. I can't thank philiKON and Vladimir Vukicevic enough for their work on this add-on. However, a few issues need fixin' up since Firefox 29 and Australis happened:
(1) As others have mentioned, closing tabs doesn't work properly anymore; they seem to reside in memory until Firefox is closed.
(2) Drag 'n' drop reordering of tabs is somewhat broken again. They tend to jump way up or down on the vertical tab bar when this is attempted. Have had to revert to using keyboard shortcuts with the "Move Tabs" add-on again for fine control of tab reordering.
(3) After the current tab is closed and focus switches to the previous tab, Vertical Tabs no longer automatically scrolls the vertical list of tabs so that the newly focused tab is visible in the window (if the list of tabs is long enough to warrant this need).
(4) Visually, things are rough around the edges right now. Nothing a little Stylish and tweaked UserStyles scripts can't fix, but by default things look a little wonky.

Vertical Tabs screws up Title/URL bar in FX 29 on OSX Rated 4 out of 5 stars

I have the problem identified on 4.28 in the Review starting "Austrlis. . ." Disabling VT resolves the display. Otherwise, quite satisfied with this addon.
By the way, the instructions ask for bug reports in the "support section" but I could not find a support section on this extension's page.

Rated 1 out of 5 stars

Close the tab with the video or music, but they continue to play. Sound remains. In previous versions of this all right.

Rated 5 out of 5 stars

Best vertical tabs addon.
But there is some things that can be improved:
remove empty space at tab sides, restore double click on empty place to open new tab, add tab groups and possibly new tab buttons, active tab style does not look good with fixed tabs style

Rated 5 out of 5 stars

I use this addon already few years. Very comfortably!
Пользуюсь уже несколько лет. Очень удобно!

Pinned Tabs display problem under FF29 Rated 3 out of 5 stars

VT 0.10b1, FF29: pinned tabs cause flicker, where they qre sometimes positioned as if they had a height of 0 (that is, ontop each other and the first non-pinned tab), and sometimes correctly.

Problem with FF29 Rated 4 out of 5 stars

Worked fine until FF29. Now there is a gap (about an inch) at the very right end of the browser toolbar. Tried to fix it with Classic Theme Restorer, but won't budge.

This user has a previous review of this add-on.

100% CPU on FF 29 Rated 1 out of 5 stars

100% CPU with VT enabled, normal CPU with VT disabled!
Running on a RHEL-like Linux distro.

This user has 3 previous reviews of this add-on.

Rated 3 out of 5 stars

0.10b1 causes endless CPU hogging on Linux FF 29 when restarting browser with Vertical Tabs enabled. Strangely, enabling VT from a disabled state doesn't spin up CPU immediately. This only happens when restarting browser. Bisected through a huge list of plugins and VT is clearly identified as the culprit.

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

Australis, unsurprisingly, broke part of this in OS X. Rated 4 out of 5 stars

I've loved this add-on for quite some time, but the introduction of Australis into the mix caused some problems. The tabs display properly, but the problem is the title/URL bar. When the tabs become vertical, the URL bar moves to take their place in the title bar. Unfortunately, that results in everything getting cut in half. URL bar, icons, Chrome (oops, Firefox) menu, etc.

Otherwise, this add-on works fantastically. Especially under version 28 and below.

Rated 5 out of 5 stars

Perfect for me !
As of 2014.04.18.Fr., Vertical Tabs' former version 0.9.4 installed nicely on a fresh Firefox v28.0.

Rated 4 out of 5 stars

On Firefox 28 with Vertical Tabs 0.9.4, webm video on YouTube does not fullscreen properly. The tabs are still shown.

Other tab verticalizing addons do not provent YouTube to fullscreen.

This user has a previous review of this add-on.

Good Addon, Except Rated 3 out of 5 stars

Good addon except it causes the bar at the bottom left of the window, that gives the url of link that is hovered over, to be dark with no text or text the same color as the bar. Kubuntu 13.10, FF 28.0.

This user has a previous review of this add-on.