Firefox: Cannot Open vCenter Web Client

KB ID 0001482


I wonder how many hours Ive lost trying to get browsers to connect to things, and the browser has not been happy? This week I needed to connect to a vCenter (6.5) web console with Firefox and was greeted with this.

Cannot open vCenter in Firefox

Your connection is not secure
The owner of {site} has configured their web site improperly. To protect information being stolen, Firefox has not connected to this website.

Normally I use Firefox, because if there’s a problem I can simply add an exception and all is well, but this time there was no way to connect at all.


Browse to about:config, and then search for security.enterprise, set it to true.

vCenter web in Firefox

Now it will work

Firefox and vCenter

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Author: PeteLong

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