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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

V.22 Font size very large; intro page opens each time; add-ons are checked each opening

  • 2 replies
  • 10 have this problem
  • 5 views
  • Last reply by Aftoora

Aftoora
Aftoora
more options

Since installing V.22, every time I open Firefox, the "checking add-ons for compatibility" runs, and the new Introduction page opens. I'm running Windows 7 Pro.

Since installing V.22, every time I open Firefox, the "checking add-ons for compatibility" runs, and the new Introduction page opens. I'm running Windows 7 Pro.

Chosen solution

Thanks cor-el, That solved the font problem! I uninstalled and reinstalled Firefox and that solved the recurring Intro page and the Add-on scanning problems.

Read this answer in context 👍 0

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can check for problems with preferences and rename or delete the prefs.js file and possible numbered prefs-##.js files and a possible user.js file to reset all prefs to the default value.

Code changes regarding HiDPI support have landed in Firefox 22 and later (bug #844604).

You can modify the layout.css.devPixelsPerPx and increase or decrease the value in 0.1 or 0.05 steps to adjust the size of fonts and other elements in Firefox.

  • The layout.css.devPixelsPerPx pref is a String value parsed to a float and allows to fine tune the dimensions of all elements (user interface and web pages) more precisely (resolution 0.1 or 0.05).
  • Change the default value -1 to 1 to make it work like in previous Firefox versions (100%)
  • Use values between 0.05 and 1.0 to reduce elements in size.
  • Use values greater than 1.0 to magnify and make elements larger (percentage divided by DPI, % / DPI).
  • http://kb.mozillazine.org/about:config

If web pages needs to be adjusted after changing this pref then you can look at the Default FullZoom Level or NoSquint extension.

Use this extension to adjust the font size for the user interface:

Modified by cor-el

Aftoora
Aftoora Question owner
more options

Chosen Solution

Thanks cor-el, That solved the font problem! I uninstalled and reinstalled Firefox and that solved the recurring Intro page and the Add-on scanning problems.