Some small issues but it still works on Firefox 54 and Pale Moon 27 Waardering 5 van 5 sterren

In youtube If the popup video doesn't start and you get the a spinning icon you can start it by clicking once or twice or better prevent it by disabling youtube's SPF (SPF - Structured Page Fragments - is a lightweight JS framework for fast navigation and page updates from YouTube which was introduced on late 2014.).
Here's a Greasemonkey userscript to disable SPF - https://greasyfork.org/en/scripts/16935-disable-spf-youtube . BTW - after you install you won't be seeing the "Red Bar" when a new video is loaded.

The video fits best the popup window when YT's Theater Mode is ON. If it pops up in the Default Mode and the Theater Mode button is not displayed just resize the popup window a bit until you see it.

My most favorite feature - using the context-menu (right-click) to popup any supported video's links.

Another advantage - It supports playlists (Next & Prev buttons in the popup window)

Things that need an update are : "videos in this page" feature doesn't work and the color of the tooltip's text (when you hover the progress bar) shouldn't be dark.

Please Update this addon Waardering 3 van 5 sterren

Very good addon, but needs to an update

Waardering 3 van 5 sterren

在哔哩哔哩只能打开白屏的窗口

Used to be ace Waardering 3 van 5 sterren

I used this all the time...then I updated firefox and it don't work no more.

已经很久没有更新了,已经不能独立看视频了 Waardering 1 van 5 sterren

希望早点更新,火狐没有独立窗口

Doesn't Work Waardering 1 van 5 sterren

In firefox 50 this addon doesnt work
Be carefull the lastest update was in 2013, This addon need a update.

The addon is great but doesnt work

Regards, fix this

Dead Waardering 1 van 5 sterren

Does not work at all.

функция поверх всех окон не работет в linux Waardering 1 van 5 sterren

в linux среде не работает функция поверх всех окон.
когда будет устранена данная проблема?
браузер и расширение всегда актуальные использую.

Can't resize the video properly Waardering 3 van 5 sterren

The video wants to stay the same size, I used to be able to make the video really tiny.

Не очень хорошо Waardering 4 van 5 sterren

У меня PC и Ноутбук. На обоих установлен Windows 10, Firefox Developer Edition и этот плагин. На ноутбуке плагин работает, а на PC нет. Исправьте, пожалуйста. На PC переустанавливал браузер не помогло.
Ноутбук: Lenovo z580 (i3, NV630)
Компьютер: ЦП QuadCore Intel Xeon E3-1230 v3, 3700 MHz (36 x 103)
Системная плата Asus Z97-C (3 PCI, 2 PCI-E x1, 2 PCI-E x16, 1 M.2, 4 DDR3 DIMM, Audio, Video, Gigabit LAN)
Видеоадаптер NVIDIA GeForce GTX 770 (2 ГБ)

Beware, awful provacy policy Waardering 1 van 5 sterren

I'm sure a lot of people don't actually read it but by installing this addon you are inviting developer to collect all the information possible. IP, history, information about device, clicks, information about extensions you are browsing and more. Please, don't actually install this plugin if you value your privacy.

Needs a revival! Waardering 5 van 5 sterren

Can`t let this great addon go to trash, just sad.

plz updeate Waardering 4 van 5 sterren

plz updeate from mozilla 43

most useful plugin! but isn´t working anymore :( Waardering 1 van 5 sterren

would be glad if somebody could fix this!

Does anyone know an alternative?

Not working Waardering 1 van 5 sterren

Was great but obv not now.

unfortunately no longer works Waardering 1 van 5 sterren

unfortunately no longer works

Used to be perfect Waardering 1 van 5 sterren

This used to be an excellent extension, It was really useful, now it's worthless. It simply doesn't work anymore. End of story.

Not compatible with firefox 41+ Waardering 4 van 5 sterren

Are you still maintaining this add-on? It's not compatible with firefox 41+ when you click on the video the window opens white with a loading symbol and nothing else happens could you look at it please?

Thanks for making this add-on.

Waardering 4 van 5 sterren

Thank`s for add-on.

nightly Waardering 5 van 5 sterren

41.0a1 not supported