Firefox
Firefox specifications
Mozilla Firefox is a free, privacy-centric open-source web browser developed by the Mozilla Foundation and its subsidiary, Mozilla Corporation. Powered by the Gecko rendering engine and SpiderMonkey JavaScript engine, Firefox offers Enhanced Tracking Protection, multi-account containers, and independent web standards compliance.
| Developer | Firefox Project / Developers |
|---|---|
| Browser engine | Servo |
| Supported platforms | Windows, macOS, Linux, Android, iOS |
Latest Firefox versions:
- Firefox 158
- Firefox 157
- Firefox 156
- Firefox 155
- Firefox 154
- Firefox 153
- Firefox 152
- Firefox 151
- Firefox 150
- Firefox 149
- Firefox 148
- Firefox 147
- Firefox 146
- Firefox 145
- Firefox 144
- Firefox 143
- Firefox 142
- Firefox 141
- Firefox 140
- Firefox 139
- Firefox 138
- Firefox 137
- Firefox 136
- Firefox 135
- Firefox 134
- Firefox 133
- Firefox 132
- Firefox 131
- Firefox 130
- Firefox 129
- Firefox 128
- Firefox 127
- Firefox 126
- Firefox 125
- Firefox 124
- Firefox 123
- Firefox 122
- Firefox 121
- Firefox 120
- Firefox 119
- Firefox 118
- Firefox 117
- Firefox 116
- Firefox 115
- Firefox 114
- Firefox 113
- Firefox 112
- Firefox 111
- Firefox 110
- Firefox 109
- Firefox 108
- Firefox 107
- Firefox 106
- Firefox 105
- Firefox 104
- Firefox 103
- Firefox 102
- Firefox 101
- Firefox 100
- Firefox 99
- Firefox 98
- Firefox 97
- Firefox 96
- Firefox 95
- Firefox 94
- Firefox 93
- Firefox 92
- Firefox 91
- Firefox 90
- Firefox 89
- Firefox 88
- Firefox 87
- Firefox 86
- Firefox 85
- Firefox 84
- Firefox 83
- Firefox 82
- Firefox 81
- Firefox 80
- Firefox 79
- Firefox 78
- Firefox 77
- Firefox 76
- Firefox 75
- Firefox 74
- Firefox 73
- Firefox 72
- Firefox 71
- Firefox 70
- Firefox 69
- Firefox 68
- Firefox 67
- Firefox 66
- Firefox 65
- Firefox 64
- Firefox 63
- Firefox 62
- Firefox 61
- Firefox 60
- Firefox 59
- Firefox 58
- Firefox 57
- Firefox 56
- Firefox 55
- Firefox 54
- Firefox 53
- Firefox 52
- Firefox 51
- Firefox 50
- Firefox 49
- Firefox 48
- Firefox 47
- Firefox 46
- Firefox 45
- Firefox 44
- Firefox 43
- Firefox 42
- Firefox 41
- Firefox 40
- Firefox 39
- Firefox 38
- Firefox 37
- Firefox 36
- Firefox 35
- Firefox 34
- Firefox 33
- Firefox 32
- Firefox 31
- Firefox 30
- Firefox 29
- Firefox 28
- Firefox 27
- Firefox 26
- Firefox 25
- Firefox 24
- Firefox 23
- Firefox 22
- Firefox 21
- Firefox 20
- Firefox 19
- Firefox 18
- Firefox 17
- Firefox 16
- Firefox 15
- Firefox 14
- Firefox 13
- Firefox 12
- Firefox 11
- Firefox 10
- Firefox 9
- Firefox 8
- Firefox 7
- Firefox 6
- Firefox 5
- Firefox 4
- Firefox 3
- Firefox 2
- Firefox 1
- Firefox (version 0-1)
- Firefox (unknown version)
Latest Firefox user agents:
| User Agent | Platform | Device |
|---|---|---|
| Mozilla/5.0 (Macintosh; Intel Mac OS X 14.5; rv:156.0esr) Gecko/20010101 Firefox/156.0esr | Mac 14 | Unknown |
| Mozilla/5.0 (X11; U; Linux x86_64; rv:135.0esr) Gecko/20210911 Firefox/135.0esr | GNU/Linux | Unknown |
| Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:158.0) Gecko/20100101 Firefox/158.0 | Fedora | Unknown |
| Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:156.0esr) Gecko/20100101 Firefox/156.0esr/Fx3fZbGQz | Windows 7 | Unknown |
| Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:157.0) Gecko/20100101 Firefox/157.0/tQzHc0YIv21oU1 | Windows 10 | Unknown |
| Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:158.0esr) Gecko/20100101 Firefox/158.0esr/QvuB9M07e | Windows 8 | Unknown |
| Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:158.0) Gecko/20100101 Firefox/158.0/v3k3dlygN-27 | Windows 10 | Unknown |
| Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:156.0) Gecko/20100101 Firefox/156.0/eSkUGcurMDt6tER2-04 | Windows 8 | Unknown |
| Mozilla/5.0 (Windows NT 10.0; WOW64; x64; rv:158.0esr) Gecko/20100101 Firefox/158.0esr/nrxwmRO2zHK-58 | Windows 10 | Unknown |
| Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:156.0esr) Gecko/20100101 Firefox/156.0esr/iMCYukvD81hjcAZ-35 | Windows 10 | Unknown |