Firefox 91 Statistics - List of Firefox 91 User Agent Strings

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Firefox 91

Web Browser: Firefox
Web Browser Version: 91

Total Known IP Addresses who have used this Browser: 25,951 ip
Total Known IPv6 Addresses who have used this Browser: 5,202 ipv6

No	User Agent	Operating System for this User Agent	Web Browser for this User Agent	Total Known IP Addresses who have used this User Agent
Firefox 91 User Agents
1	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_0_2; rv:91.0) Gecko/20110101 Firefox/91.0	Mac OS X 10.0.2	Firefox 91	2 ip
2	Mozilla/5.0 (Macintosh; Intel Mac OS X 11.6; rv:91.0) Gecko/20100101 Firefox/91.0	Mac OS X 11.6	Firefox 91	1 ip
3	Mozilla/5.0 (Android 10; Tablet; rv:91.0) Gecko/91.0 Firefox/91.0	Android 10	Firefox 91	1 ip
4	Mozilla/5.0 (Android 10; Mobile; rv:91.0) Gecko/91.0 Firefox/91.0	Android 10	Firefox 91	442 ip
5	Mozilla/5.0 (Macintosh; Intel Mac OS X 12; rv:91.0) Gecko/20100101 Firefox/91.0	Mac OS X 12	Firefox 91	2 ip
6	Mozilla/5.0 (Android 9; Mobile; rv:67.0) Gecko/67.0 Firefox/91.0.2	Android 9	Firefox 91	2 ip
7	Mozilla/5.0 (Android 9; Mobile; rv:91.0) Gecko/91.0 Firefox/91.0	Android 9	Firefox 91	38 ip
8	Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Firefox/91.0	Mac OS X 10.15	Firefox 91	864 ip
9	Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:91.0) Gecko/20100101 Firefox/91.0	Mac OS X 10.14	Firefox 91	82 ip
10	Mozilla/5.0 (Macintosh; Intel Mac OS X 11; rv:91.0) Gecko/20100101 Firefox/91.0	Mac OS X 11	Firefox 91	6 ip

Total: 73 records (show first 10 records only) All records Go Computer Browser Agents »

No	IP Address Visting Site	Web Browser on this IP	OS on this IP	State	Country	Latest Site Visit Date
Firefox 91 Recent IPv4 Addresses Visting Site
1	140.238.242.105	Firefox 91	GNU/Linux x64	Maharashtra	India	08 Feb 2026, 15:49
Browser Agent on this IP: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
2	91.251.8.30	Firefox 91	GNU/Linux x64		Iran	07 Feb 2026, 11:16
Browser Agent on this IP: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
3	176.108.168.249	Firefox 91	Windows 7	Moscow Oblast	Russia	28 Jan 2026, 20:19
Browser Agent on this IP: Mozilla/5.0 (Windows NT 6.1; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
4	81.90.3.226	Firefox 91	Windows 10 x64 Edition	Moscow Oblast	Russia	15 Jan 2026, 08:58
Browser Agent on this IP: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
5	89.238.155.22	Firefox 91	Windows 10	England	United Kingdom	10 Jan 2026, 09:49
Browser Agent on this IP: Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
6	213.232.235.84	Firefox 91	Windows 10	Moscow	Russia	06 Jan 2026, 00:06
Browser Agent on this IP: Mozilla/5.0 (Windows NT 10.0; WOW63; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
7	185.229.162.161	Firefox 91	Windows 10 x64 Edition	Ile-de-France	France	19 Dec 2025, 07:14
Browser Agent on this IP: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
8	185.206.80.89	Firefox 91	GNU/Linux x64	Erbil	Iraq	01 Dec 2025, 07:25
Browser Agent on this IP: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
9	34.13.156.134	Firefox 91	GNU/Linux x64		USA	28 Nov 2025, 10:54
Is this Crawler Bot ?: Browser Agent on this IP: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 Did visit from this IP address create a threat to websites ?: Type of Threat from this IP: Unknown Spam Bot masking himself as a normal user More Details »
10	178.26.92.44	Firefox 91	GNU/Linux x64	Bavaria	Germany	21 Nov 2025, 12:57
Browser Agent on this IP: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »

Total: 25,951 records (show first 10 records only) All records Go Recent IPv4 Addresses Visting Site »

No	IPv6 Address Visting Site	Country	OS on this IPv6	Web Browser on this IPv6	Latest Site Visit Date
Firefox 91 Recent IPv6 Addresses Visting Site
1	2a0b:f4c2:1::1	United Kingdom	Windows 10	Firefox 91	18 Jan 2026, 07:53
State: England City: Kennington Browser Agent on this IPv6: Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
2	2003:c9:f73e:1c97:a1d1:f519:e261:d9f2	Germany	Windows 7	Firefox 91	13 Aug 2025, 19:41
State: Hesse City: Frankfurt am Main Browser Agent on this IPv6: Mozilla/5.0 (Windows NT 6.1; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
3	2001:67c:e60:c0c:192:42:116:173	USA	Windows 10	Firefox 91	23 Jul 2025, 08:11
Browser Agent on this IPv6: Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
4	2803:3f40:8023:4ec0:d1ef:16ab:a5d9:cfa5	Argentina	GNU/Linux x64	Firefox 91	29 Mar 2025, 17:27
Browser Agent on this IPv6: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
5	2a12:a800:1:1:194:26:192:77	USA	Windows 10	Firefox 91	22 Jan 2025, 22:03
Browser Agent on this IPv6: Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
6	2a12:a800:2:1:185:241:208:71	USA	Windows 10	Firefox 91	17 Jan 2025, 16:15
Browser Agent on this IPv6: Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
7	2001:67c:2f5c:2::ee	Ukraine	Windows 10 x64 Edition	Firefox 91	05 Dec 2024, 15:58
State: Odessa City: Izmail Browser Agent on this IPv6: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
8	2401:4900:3682:a0e4:7a3f:f37b:563e:ca5d	India	Windows 10	Firefox 91	15 Nov 2024, 14:37
State: Telangana City: Hyderabad Browser Agent on this IPv6: Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
9	2603:301f:1cff:100:6245:cbff:fe5f:b96d	USA	GNU/Linux x64	Firefox 91	14 Nov 2024, 21:22
State: Pennsylvania City: Pittsburgh Browser Agent on this IPv6: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »
10	2a02:ed06::222	Norway	Windows 10	Firefox 91	13 Nov 2024, 21:03
State: Oslo County City: Oslo Browser Agent on this IPv6: Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0 More Details »