Set the integer value to 2 in order to force the protocol of TLS 1.1.In the address bar, type about:config and press Enter.In order to be able to launch the ACS GUI with Transport Layer Security (TLS) v1.1, set the "" parameter to 2 in Firefox version 52 with this procedure: If the workaround is used, then it is recommended to revert the modifications once ACS 5.8 Patch 7 is installed. If it is not possible to apply ACS 5.8 Patch 7 when Firefox version 52 is used, then the provided workaround can be used in order to modify settings in the Firefox browser. This patch can be applied on either ACS 5.8 or ACS 5.8.1. Workaround/Solutionįor customers that run the affected ACS versions and Firefox version 52, upgrade to ACS 5.8 Patch 7. Problem SymptomĪn ACS administrator is not able to launch the ACS Login GUI with the Firefox version 52 browser. This issue does not affect releases earlier than ACS 5.8. These two releases leverage common patches and the issue occurs for patches installed on either ACS 5.8 or 5.8.1. Note that the ACS 5.8 and ACS 5.8.1 releases are functionally equivalent, with the ACS 5.8.1 release supporting additional hardware platforms. The issue is addressed in ACS 5.8 Patch 7 with an update to some libraries from Mozilla to be compatible with Firefox version 52. The code changes implemented in Firefox version 52 triggered this problem. BackgroundĪn ACS administrator is unable to launch the ACS GUI and receives the error "Secure Connection Failed" when the Firefox version 52 browser is used to manage the ACS. Not able to launch the ACS GUI in FF 52 BrowserĪccess Control System (ACS) administrators are unable to launch the ACS Login GUI with the Firefox version 52 browser in order to manage the affected ACS 5.8 versions.įirefox Version 52 is planned to be released on Maas per the Mozilla Release calendar. ACS 5.8.0.32 patches 4, 5, and 6 are affected
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