I'm receiving via Moodle links to Google Meets for online classes and they usually open on a popup-like window, their URL can't be edited and most of my toolbars on Firefox aren't there, so i can just pin (with an addon an a keyboard shortcut) this window on top of everything and use my screen space optimally.

That's the desired behavior, as it's good to have a small, no-nonsense window for this. However, somewhat often they open up as regular windows, which would be only suited for maximized view, as I have lots of extensions, buttons and so on.

I already have read a bit about why these windows are like this on this answer on Stack Overflow, but only found "why"s, not "how"s.

Anyway, if I have the URL, is there a way to force Firefox in this "popup mode"?


1 Answer 1


Found a solution for a minimal 2nd Firefox window on this answer.

You can either enter this on web console (Ctrl+Shift+K):

window.open("http://google.com", "Google", "menubar=no, location=yes")

Or use this bookmarklet:


Alternatively, Chrome can even show websites to look like apps.

Drawback of using 2 windows of the same browser: the main Chrome window should always be started first, otherwise existing tabs may be lost when opening an "external" link to another website.

Workaround: use SessionBuddy to restore tabs when lost, it can be configured to show the number of open tabs.

  • Thank you, the first part did it! I should note that the Chrome solution wouldn't work for me, since Chrome doesn't have an extension to allow pinning it's window on top of others, as far as I know. Also, I did a little editing to your answer in order to improve readability and directly include the information you provided. Apr 23, 2020 at 2:32
  • Nice to hear that it helped, do you want to set a link to that extension in your question? I am using the Chrome alternative myself because there even the address bar is hidden, it can be pinned to taskbar and has the website's icon in the taskbar.
    – Furty
    Apr 23, 2020 at 5:44
  • Sure, I linked it in the question! Apr 24, 2020 at 1:39

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