Specially on a Mac, I really hate when sites try to resize your browser – those full screen philanthropic sites. The good thing is OS x Daily has the right solution. Here is how to Disable Automatic Browser resize in Firefox.
- In Firefox, navigate to the Firefox menu and down to “Preferences” (in Windows, it will be under Tools->Options)
- Navigate to the Content tab
- Uncheck the topmost item, “Move or resize existing windows”
Now onwards, you’ll have control over those sites who think your browser is theirs; Firefox will no longer allow web pages to resize your browser window.