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.

Search Support

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

Firefox window will not scale down past 420px wide

more options

For some reason on both my work Mac and home Mac I am unable to shrink my browser window past 420 - 425px wide. Both computers are using mavricks. It does not matter the website. I disabled all addons and toolbars. Updated me version. But have had no luck. Even if I try and resize viewport with developer tools the window will not shrink past 425px

For some reason on both my work Mac and home Mac I am unable to shrink my browser window past 420 - 425px wide. Both computers are using mavricks. It does not matter the website. I disabled all addons and toolbars. Updated me version. But have had no luck. Even if I try and resize viewport with developer tools the window will not shrink past 425px

All Replies (1)

more options

That was caused by a Bug fix for a new minimum width window size.

See this - https://support.mozilla.org/en-US/questions/980033#answer-510995