Mozilla Firefox Official Site – https://www.mozilla.com/en-US/firefox/
Direct Link Download Mozilla Firefox 66.0.5 :
Firefox 66.0.5 for Windows 32-bit
Firefox 66.0.5 for Windows 64-bit
Firefox 66.0.5 for Linux x86, x64
Firefox 66.0.5 for Mac
Firefox 66.0.5 EME Free version
Firefox for Android
Firefox for iOS
Firefox for All Systems and Languages
Firefox Portable
HOW TO DOWNLOAD :
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