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

How do i change the font size of websites i visit with the browser?

  • 2 replies
  • 1 has this problem
  • 4 views
  • Last reply by areilly

more options

When visiting a certain social networking site on my laptop with firefox i noticed while scrolling down the font size got smaller. This has recently happened again and the txt is now just about legible.. The font sizes on all other websites visited are fine and normal but everytime I log into Facebook the text now remains the same smaller font.

When visiting a certain social networking site on my laptop with firefox i noticed while scrolling down the font size got smaller. This has recently happened again and the txt is now just about legible.. The font sizes on all other websites visited are fine and normal but everytime I log into Facebook the text now remains the same smaller font.

All Replies (2)

more options

Make sure that you do not press the Ctrl button while scrolling.

You can set the mousewheel.withcontrolkey.action pref to 0 to perform a scroll.

To open the about:config page, type about:config in the location (address) bar and press the "Enter" key, just like you type the url of a website to open a website.
If you see a warning then you can confirm that you want to access that page.
You can use the Filter bar at to top of the about:config page to locate a pref more easily.

Filter: mousewheel

more options

Thanks for the reply.. with a bit of hunting about in toolbar settings i found the zoom control.. seems have fixed it :)