This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Buscar en Ayuda

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Resize Firefox 26 to a width of less than 400px

  • 8 respuestas
  • 38 tienen este problema
  • 23 visitas
  • Última respuesta de hartandvine

more options

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+?

Solución elegida

This worked for me.

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

Leer esta respuesta en su contexto 👍 2

Todas las respuestas (8)

more options

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})();
more options

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

more options

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

more options

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."

more options

Solución elegida

This worked for me.

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

Modificadas por anom999 el

more options
more options

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

more options

Responsive Design View solves the problem for me.

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