Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Caută ajutor

Atenție la excrocheriile de asistență. Noi nu îți vom cere niciodată să suni sau să trimiți vreun SMS la vreun număr de telefon sau să dai informații personale. Te rugăm să raportezi activitățile suspecte folosind opțiunea „Raportează un abuz”.

Află mai multe

Resize Firefox 26 to a width of less than 400px

  • 8 răspunsuri
  • 38 au această problemă
  • 135 de vizualizări
  • Ultimul răspuns dat de hartandvine
  • Rezolvată

Since the upgrade to Firefox 26.0, it seems to be no longer possible to resize a window to be smaller than a width of approx. ~400px. I run a custom web-application in its own Firefox instance, which requires far less horizontal space, and therefore would like to be able to resize the window to an appropriate size. In the previous version (Firefox 25, I guess) this was no problem. Is there any possibility to regain this ability in Firefox 26+?

Since the upgrade to Firefox 26.0, it seems to be no longer possible to resize a window to be smaller than a width of approx. ~400px. I run a custom web-application in its own Firefox instance, which requires far less horizontal space, and therefore would like to be able to resize the window to an appropriate size. In the previous version (Firefox 25, I guess) this was no problem. Is there any possibility to regain this ability in Firefox 26+?

Soluție aleasă

This worked for me.

[[Cannot resize Firefox window under 374 pixel|https://support.mozilla.org/en-US/questions/980033#answer-510995]]

Citește răspunsul în context 👍 2

Toate răspunsurile (8)

hello john117, as a workaround you could create a bookmarklet to open the site in a pop-up with a predefined width. just create a new bookmark, right-click it and add the following content as address (and adapt it for your needs):

javascript:(function(){%20window.open('http://example.com','Sample','status=no,directories=no,location=no,resizable=yes,menubar=no,width=250,height=210,toolbar=no');%20})();

Is it a bug? If not FF is useless for developping responsive webpages now.

https://bugzilla.mozilla.org/show_bug.cgi?id=897160

This is what caused the problem. Does anyone know what file needs to be edited to unfix that bug? Thanks

This is maybe what you looking for: Responsive Design View

" The Responsive Design View makes it easy to see how your website or web app will look on different screen sizes."

Soluție aleasă

This worked for me.

[[Cannot resize Firefox window under 374 pixel|https://support.mozilla.org/en-US/questions/980033#answer-510995]]

Modificat la de anom999

Web Developer extension or Firesizer doesn't help. Same behavior.

Custom Geometry. Couldn't test it. Maybe not compatible with FF 26? No button in statusbar.

Responsive Design View is Ok for me. Thanks @Kniven

Responsive Design View solves the problem for me.

https://developer.mozilla.org/en-US/docs/Tools/Responsive_Design_View