Katie Gatto is a technology writer with seven years of experience, and a native Mac user. She has previously written for Apple related site such as Appletell and Mac Apper.
There are tons of ways to make Firefox runs faster. One of the ways is to turn off the tabs animation so the opening and closing of tabs will be immediate and doesn't take up much memory.
In Firefox, open a new tab and type "about:config" in the address bar.
Search for "browser.tabs.aimate" and double click to change the value to "false".