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    Gecko versions and application versions

    The following table shows the various versions of Gecko and what versions of common applications are based on them. Note that after Gecko 2.0, both Firefox and Thunderbird versions are from then on the same as the Gecko version number, at Gecko 5.0.

    Gecko version Applications based on it
    Gecko 24 Firefox 24, Thunderbird 24, SeaMonkey 2.21
    Gecko 23 Firefox 23, SeaMonkey 2.20
    Gecko 22 Firefox 22, SeaMonkey 2.19
    Gecko 21 Firefox 21, SeaMonkey 2.18
    Gecko 20 Firefox 20, SeaMonkey 2.17
    Gecko 19 Firefox 19, SeaMonkey 2.16
    Gecko 18 Firefox 18, Firefox OS 1.0, SeaMonkey 2.15
    Gecko 17 Firefox 17, Thunderbird 17, SeaMonkey 2.14
    Gecko 16 Firefox 16, Thunderbird 16, SeaMonkey 2.13
    Gecko 15 Firefox 15, Thunderbird 15, SeaMonkey 2.12
    Gecko 14 Firefox 14, Thunderbird 14, SeaMonkey 2.11
    Gecko 13 Firefox 13, Thunderbird 13, SeaMonkey 2.10
    Gecko 12 Firefox 12, Thunderbird 12, SeaMonkey 2.9
    Gecko 11 Firefox 11, Thunderbird 11, SeaMonkey 2.8
    Gecko 10 Firefox 10, Thunderbird 10, SeaMonkey 2.7
    Gecko 9 Firefox 9, Thunderbird 9, SeaMonkey 2.6
    Gecko 8 Firefox 8, Thunderbird 8, SeaMonkey 2.5
    Gecko 7 Firefox 7, Thunderbird 7, SeaMonkey 2.4
    Gecko 6 Firefox 6, Thunderbird 6, SeaMonkey 2.3
    Gecko 5 Firefox 5, Thunderbird 5, SeaMonkey 2.2
    Gecko 2 Firefox 4, Thunderbird 3.3, SeaMonkey 2.1
    Gecko 1.9.2 Firefox 3.6, Thunderbird 3.1
    Gecko 1.9.1 Firefox 3.5, Thunderbird 3, SeaMonkey 2.0
    Gecko 1.9 Firefox 3
    Gecko 1.8.1 Firefox 2, Thunderbird 2, SeaMonkey 1.1
    Gecko 1.8 Firefox 1.5, Thunderbird 1.5, SeaMonkey 1.0
    Gecko 1.7 Firefox 1.0, Thunderbird 1.0, Nvu 1.0, Mozilla Suite 1.7
    older versions of Gecko match the Mozilla Suite versions

     

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    Contributors to this page: Sheppy, Bomb12772, ethertank, Editmonkey
    Last updated by: Bomb12772,