Sophos Firewall

Discussions Facebook broken in Firefox when TLS Scan enabled

Sophos Firewall requires membership for participation - click to join

Thread Info

State Verified Answer
+1 person also asked this people also asked this
Locked Locked
Replies 4 replies
Subscribers 29 subscribers
Views 558 views
Users 0 members are here

Options

Suggested

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Facebook broken in Firefox when TLS Scan enabled

hoosty over 4 years ago

Hi,

facebook site is broken when TLS scan is enabled.

The weird thing is, its only in firefox, edge works fine.

Do you have a hint for me?

This thread was automatically locked due to age.

Top Replies

LuCar Toni over 4 years ago +2 verified

See: https://support.sophos.com/support/s/article/KB-000042276?language=en_US

0 rfcat_vk over 4 years ago

Hi,

There should be a lot of exceptions for Facebook, you might need more. Also check what default tls version each browser is using.

ian

XG115W - v19.5.1 mr-1 - Home

If a post solves your question please use the 'Verify Answer' button.
Cancel
Vote Up 0 Vote Down

Cancel
0 hoosty over 4 years ago in reply to rfcat_vk

OK, decreasing the maximum TLS Standard helps.

In about:config the value of security.tls.version.max must be 3. It seams that Sophos Scanning is partially incompatible to TLS1.3
Cancel
Vote Up 0 Vote Down

Cancel
0 rfcat_vk over 4 years ago in reply to hoosty

Hi,

you can set the minimum tls level in the tls configuration GUI.

ian

XG115W - v19.5.1 mr-1 - Home

If a post solves your question please use the 'Verify Answer' button.
Cancel
Vote Up 0 Vote Down

Cancel
+1 LuCar Toni over 4 years ago

See: https://support.sophos.com/support/s/article/KB-000042276?language=en_US

__________________________________________________________________________________________________________________
Cancel
Vote Up +2 Vote Down

Cancel