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Android Honeycomb (version 3) will no longer be supported.
Download Firefox — English (US)
Your system may not meet the requirements for Firefox, but you can try one of these versions:
Firefox is no longer supported on Windows 8.1 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.
Download Firefox ESR 64-bit
Download Firefox ESR 32-bit
Firefox is no longer supported on macOS 10.14 and below.