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Can't access devices through EDM since Firefox update 64.0

Can't access devices through EDM since Firefox update 64.0

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Pete
New Contributor

‎12-21-2018 11:06 AM

We're running a lot of ERS4500 series switches ( just under 100) with Avaya v5.7.2.012 firmware. Also a small number of ERS3500 that are experiencing the same issue and our ERS8800 with Firmware 7.1.5.2

Since the Firefox browser update to V64.0 we are unable to access any of the switches using EDM. After the initial login completes it shows '"Discovering Device, please wait' but never progresses.

We have found that devices with Extreme branded firmware :v5.3.8.014 are still working.

When we open the Firefox Web Developer - Debug console we see a message like the following;
TypeError: webServerName is undefined[Learn More] edmContentJs.js:1631:299
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fkroeger
New Contributor

‎06-28-2019 10:58 AM

Since the fix (https://bugzilla.mozilla.org/show_bug.cgi?id=1398718) in Firefox 64 is only a configuration change (https://phabricator.services.mozilla.com/D6589), it can be changed back.

Simply insert about:config in the address bar, accept the warning and search for dom.xhr.lowercase_header.enabled and double click it in order to set it to false.

With this change EDM on 5600's is accessible with the newest MFF version.

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wclark431
New Contributor

‎12-21-2018 03:43 PM

We are having the same issue since the Firefox update.
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GTM-P2G8KFN