Icon of program: Firefox Developer Edition

Download Firefox Developer Edition for Mac

  • Free
  • 4.2
    1
  • 77
  • V144.0

Firefox Developer Edition free download. Always available from the Softonic serversFirefox Developer Edition free download. Always available from trusted servers.

  • Free & fast downloadFree & fast downloader ()
  • Always available
  • Tested virus-free
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Safe Downloader

The Safe Downloader downloads the app quickly and securely via Softonic´s high-speed server, so that a trustworthy origin is ensured. In addition to virus scans, our editors manually check each download for you.

Advantages of the Safe Downloader:

  • Malware protection informs you if your download has installed additional unwanted software.
  • Discover additional software: Test new software that are waiting to be discovered in the downloader.
  • With us you have the choice to accept or skip additional software installs.

Program available in other languages

App specs

  • License

    Free

  • Version

    144.0

  • Latest update

  • Platform

    Mac

  • OS

    macOS 10.15

  • Language

    English

    Available languages

    • English
    • Spanish
  • Downloads

    77

    Last month's downloads

    • 23
  • Size

    159.34 MB

  • Developer

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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.
Softonic
100/100

Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

  • Virus free
  • Spyware free
  • Malware free
  • Verified by Security Partners

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Scan Info

Last scan
Wednesday, September 17, 2025
Scan provider
VirusTotal · Full report

File Integrity

File
Firefox_Developer_Edition_V144.0.dmg
SHA256
dd151ac277113b3956e5f0d44ccbc365dcfb47bc0fb51b4d0b12c8cad83a14e4
SHA1
bb5b0b4401e3019a005a0759b51bb87f5d6d48e0

Softonic security commitment

Firefox Developer Edition has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware.