How to set Firefox default zoom

Mozilla Firefox is one of the most popular internet browsers across the world. It aims to provide a seamless browsing experience with many unique features. You can also set a default zoom level for all websites.

How to fix zoom level for all websites in Firefox?

To set a default zoom level for all the websites, open Firefox and type the following command in the address bar:

about:config

Next, click on the I'll be careful, I promise...button. In the Filter field, type browser.zoom.siteSpecific. Then, double click and set its value to False.

Next, close the about:config window and restart Firefox.