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How to read the Firefox update channel (Release or ESR) from javascript code ?

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  • Seneste svar af user633449

vinuth
vinuth
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I need to allow the user to login to my application only if he is using ESR update channel of firefox.

I tried to read the value from "navigator.userAgent.search("ESR")" command but this command does not say any thing about update channel.

How can i check firefox has esr update channel or not ? from javascript.

Thanks.

I need to allow the user to login to my application only if he is using ESR update channel of firefox. I tried to read the value from "navigator.userAgent.search("ESR")" command but this command does not say any thing about update channel. How can i check firefox has esr update channel or not ? from javascript. Thanks.

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user633449
user633449
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The release channel is not exposed to websites for good reason. What you want to do is not possible.