This add-on is perfect for running a web application in a separate browser window as if it were a native app (like a "PWA" for the desktop). On Linux, it's quite convenient to use this add-on with e.g. the Outlook web app instead of https://github.com/julian-alarcon/prospect-mail and the Microsoft Teams web app instead of the Linux client, which crashes a lot. With this add-on, there is no need to install an extra electron-based app that runs in its own little web browser (i.e. electron), when I can just run it in a separate window of my existing browser.

I was looking for something that worked like Chrome Apps for Firefox. This is even better! It works on any tab without configuration. One click and instant app window from any tab. Perfect!

OK. Resizable to any size!!! Wow! This is the absolute best, no comparison to those little window thingies that only get so big and that's it.

Great extension that I hope lasts forever. Would be awesome for Chrome also.

I would gladly pay a little for this if I had to.

Now for suggestions. Make it (easily) possible to revert to normal browser window, instead of just closing, and It'd be just perfect .

Now, where can I donate to the author?

I love that there's a light and dark version of the icon, it would be nice if it detected the background color automatically, but I don't know if it can be done.

I have looked and looked for an extension or a script of some kind that does this. It's amazing for multitasking when you can stay within the same browser, or when you just want that little extra screen space. Very, Very, Very well done.

good add-on!
... but a 'always on top' function would be great if it were possible !!!

Does what it says. Great work!

NICE ! 如果你要直接彈出小窗口看視頻,這個插件必備,謝謝.

Very cool and convenient tool to use just a browser as a multi-window web applications manager! :)

非常棒的插件，弹出窗口要是能置顶就更好了。非常期待有置顶这个功能

Great, thank you!

I searched, searched and searched a lot for an extension with that purpose, I finally found, very good! Thank you for developing this extension!

Very useful!

A few suggestions:
1.) Add a keyboard shortcut
2.) Add options for putting the popup on the left or right side of the screen -- not just in the corners. I use this extension most when I want to view web pages side-by-side, at full height.
3.) Express popup height/width options not in pixels but in fractions of a full screen. This would make the extension work consistently across monitors with different pixel resolutions, and across different machines.

Please, make a light add-on icon for the dark browser theme.

Works like a charm!
Thank You

Would like to be able to maximize on Windows and to set automatic popups by URL