Firefox Setup 4.0 Beta 12 Free Download Link

Mozilla maintains an official archive of old beta releases. You can download Firefox 4.0 Beta 12 here:

Here’s a helpful, accurate post regarding – keeping in mind this is a very old, pre-release version from late 2010/early 2011. Title: Looking for Firefox 4.0 Beta 12? Important info before you download. firefox setup 4.0 beta 12 free download

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Firefox 4.0 Beta 12 is over a decade old, contains numerous unpatched security vulnerabilities , and should not be used as your everyday browser for banking, email, or general web browsing. Mozilla maintains an official archive of old beta releases