A cautious Firefox tip: Extensions installed without whitelisting sites

If you ever tried to install an extension in Firefox you’ve encountered the warning that a site is trying to install software on your computer.

A screenshot of Firefox warning bar that shows up when you click a link to a Firefox extension.
Above: A warning bar shows up in Firefox when you click on a link to install a Firefox extension.

There is a simple way to bypass this. However, I should forewarn you that this prevention system was put in place for a good reason. Extensions could possibly be a security risk, be very careful when installing extensions from sites you don’t know.

With that warning out of the way I’ll explain how to bypass it.

  1. Copy the link. (It has to be a link to the actual xpi.)
  2. Paste it in the location bar. (The bar where you enter the url.)
  3. Hit Enter.

Now it should bypass the warning bar but it will still ask you to confirm the install. I know that there is a way to turn off said warning bar, but I like it on just in case. I use this whenever I have an extension I know I can trust and I don’t want to whitelist the entire site.