This extension is excellent. Helps a lot. I hope that Mozilla will resume its development.

It's a great concept, but two things let it down:
- There is a max width that is enforced which is too limiting for most things.
- Seems like you are constrained to having the same side view loaded in every window. Would be useful to be able to set a side view url per firefox window

Android 4.4? 🪟

The idea is great, but 540px as max width of the sidebar makes this extension useless for me. What's the problem to remove this limit?

I'm sure you need to add a panel on the side, like in Opera, Brave or Vivaldi, where you can save sites that you want to open on the side.

Please make it controllable sizing!

Hello, since this extension didn't receive an update in three years, I assume it's not longer maintained. I will still give my thoughts and wishes for the future.

The extension works technically flawless and is great to check the mobile look of a website quickly. But it's not really working as a separate browser instance, because links don't open in the sidebar, but as a normal tab. The Vivaldi browser has a proper surfing experience in it's side panel and I love it for quickly checking something on Wikipedia and not having to open a whole new tab for it.

So here's what I would love to see:
1. Some kind of bookmarking/homepage capability, so I can open my favourite side bar pages quickly.
2. Links opening within the side bar, not as a tab.

I know this is probably not going to happen, but at least I can give my feedback on it. The extension is still a great idea and works for what it is at the moment.

Nos primeiros dias de uso esta funcionando normal mas uma coisa que notei é que expande ate um certo ponto ,no tamanho de uma tela de celular, aos desenvolvedores analisem isso e permitam expandir mais a tela, fora isso a extensão esta boa

Ad-blocker doesn't work in it

分栏浏览是个不错的想法。这个功能类似EDGE中的划词分栏搜索显示，不过edge不会占用现有的侧边标签栏，而是在另外一侧打开。
所以，我的建议是分栏窗口不要占有现有的侧边栏。
标签栏在左，那请你的sede view到right去，反之同理。


体验太差了，很难想想这是官方出的插件。
（1）打开爱奇艺网站，直接用sideview看的话，广告过滤插件就不起作用了，说明这个sideview是独立的。而我正常的网页是可以用正常的广告过滤插件的。
（2）同样的网站让要选desktop还是app,但是却选择不了...
(3)哪些是sideview正开的又如何切换，这没有友好的操作体验。。。
装了之后直接就删除。

El tamaño es ridículo, ¿por qué no dejarlo a gusto del usuario?

Please make it controllable sizing!

Seriously why would you not allow more than 20% of the screen? This is a toy. It would be useful for actual work if I could split my entire screen in 2 equally big tabs. Missed opportunity.

Una de las mejores extensiones para Firefox

Could be waaay better. Please take a look at Vivaldi panels, thats a good use-case for side views

Who thought it was a good idea to limit max width?