odd port numbers used by Firefox
Hello Everyone, I looking through my firewall logs I see that Firefox uses port numbers like 64862, 64864 and others. Does anyone know what these ports are used for? My firewall is blocking them and I cannot open it up until I know what they are.
Best Regards
Chosen solution
When I run
netstat -a -b -n -o
in a cmd.exe window, I see a lot of this:
TCP 127.0.0.1:58964 127.0.0.1:58965 ESTABLISHED 8144 [firefox.exe] TCP 127.0.0.1:58965 127.0.0.1:58964 ESTABLISHED 8144 [firefox.exe] TCP 127.0.0.1:58966 127.0.0.1:58967 ESTABLISHED 13348 [firefox.exe] TCP 127.0.0.1:58967 127.0.0.1:58966 ESTABLISHED 13348 [firefox.exe] TCP 127.0.0.1:58969 127.0.0.1:58970 ESTABLISHED 16568 [firefox.exe] TCP 127.0.0.1:58970 127.0.0.1:58969 ESTABLISHED 16568 [firefox.exe] TCP 127.0.0.1:58971 127.0.0.1:58972 ESTABLISHED 20944 [firefox.exe] TCP 127.0.0.1:58972 127.0.0.1:58971 ESTABLISHED 20944 [firefox.exe] TCP 127.0.0.1:58975 127.0.0.1:58976 ESTABLISHED 20076 [firefox.exe] TCP 127.0.0.1:58976 127.0.0.1:58975 ESTABLISHED 20076 [firefox.exe] TCP 127.0.0.1:58977 127.0.0.1:58978 ESTABLISHED 15204 [firefox.exe] TCP 127.0.0.1:58978 127.0.0.1:58977 ESTABLISHED 15204 [firefox.exe] TCP 127.0.0.1:58979 127.0.0.1:58980 ESTABLISHED 4004 [firefox.exe] TCP 127.0.0.1:58980 127.0.0.1:58979 ESTABLISHED 4004 [firefox.exe] TCP 127.0.0.1:58982 127.0.0.1:58983 ESTABLISHED 15320 [firefox.exe] TCP 127.0.0.1:58983 127.0.0.1:58982 ESTABLISHED 15320 [firefox.exe]
That seems to be Firefox connecting with itself, perhaps for reasons related to process isolation.
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Thank you for the reply but I'm looking for some documentation that explains why firefox is using the network ports in the 6000. Best Regards
Modified by noone1
On Windows Firefox will use some (random) ports to communicate with the software security device. That are local connections that do not leave the computer. I don't know in what range these ports fall.
Chosen Solution
When I run
netstat -a -b -n -o
in a cmd.exe window, I see a lot of this:
TCP 127.0.0.1:58964 127.0.0.1:58965 ESTABLISHED 8144 [firefox.exe] TCP 127.0.0.1:58965 127.0.0.1:58964 ESTABLISHED 8144 [firefox.exe] TCP 127.0.0.1:58966 127.0.0.1:58967 ESTABLISHED 13348 [firefox.exe] TCP 127.0.0.1:58967 127.0.0.1:58966 ESTABLISHED 13348 [firefox.exe] TCP 127.0.0.1:58969 127.0.0.1:58970 ESTABLISHED 16568 [firefox.exe] TCP 127.0.0.1:58970 127.0.0.1:58969 ESTABLISHED 16568 [firefox.exe] TCP 127.0.0.1:58971 127.0.0.1:58972 ESTABLISHED 20944 [firefox.exe] TCP 127.0.0.1:58972 127.0.0.1:58971 ESTABLISHED 20944 [firefox.exe] TCP 127.0.0.1:58975 127.0.0.1:58976 ESTABLISHED 20076 [firefox.exe] TCP 127.0.0.1:58976 127.0.0.1:58975 ESTABLISHED 20076 [firefox.exe] TCP 127.0.0.1:58977 127.0.0.1:58978 ESTABLISHED 15204 [firefox.exe] TCP 127.0.0.1:58978 127.0.0.1:58977 ESTABLISHED 15204 [firefox.exe] TCP 127.0.0.1:58979 127.0.0.1:58980 ESTABLISHED 4004 [firefox.exe] TCP 127.0.0.1:58980 127.0.0.1:58979 ESTABLISHED 4004 [firefox.exe] TCP 127.0.0.1:58982 127.0.0.1:58983 ESTABLISHED 15320 [firefox.exe] TCP 127.0.0.1:58983 127.0.0.1:58982 ESTABLISHED 15320 [firefox.exe]
That seems to be Firefox connecting with itself, perhaps for reasons related to process isolation.