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?

This is useless - I have such a large and wide screen, but the extension limits the side view to like 10% of it.

I like the add on but one issue I have is when I have instagram.com in the sidebar and am dming someone whenever I hit enter it goes to a new line and doesn't send the message. When i am in normal browser after I hit enter the message sends.

The icon is misleading. I thought it was a means to have a split view, which I would love. By showing the '2nd' window in a side view you cannot compare the two views, since for most sites the phone interface kicks in, due to the prevalent responsive design. (a developer feature - not a user feature - which is quite confusing to most users)

Funciona como queria, obrigado.

Хорошо бы было если бы в открывающейся вкладке была строка, позволяющая открывать сайты напрямую, а не через журнал.