Mobile simulator - responsive testing tool by Mobile FIRST

3.8 Stars out of 5

Mobile simulator - responsive testing tool version history - 5 versions

Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 4.20.4
Released 12 Aug 2026 - 7.84 MB
Works with firefox 128.0 and later
Source code released under All Rights Reserved
Download Firefox and get the extension
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Older versions
Version 4.20.2
Released 4 Aug 2026 - 7.86 MB
Works with firefox 128.0 and later
Source code released under All Rights Reserved
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Version 2.1.11
Released 15 Feb 2021 - 1.03 MB
Works with firefox 60.0 and later
Source code released under All Rights Reserved
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Version 2.1.10
Released 14 Feb 2021 - 1.03 MB
Works with firefox 60.0 and later
Source code released under All Rights Reserved
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Version 2.1.8
Released 18 Jan 2021 - 1.23 MB
Works with firefox 60.0 and later
Source code released under All Rights Reserved
Download file