Access to proxy parameters

Capt'n Flash contact at
Sat Jun 10 20:32:31 UTC 2017



Thanks you for your response.


My extension don’t need to modify proxy preferences, but only to open them. Once opened, a bundled application makes a screenshot of it.

It is a critical application, used by legal entities. The goal is to made an evidence of the actual proxy settings.


Do you think there is another way to do this with webextension ?


Thanks you


Best regards,




De : Eric H. Jung [mailto:eric at] 
Envoyé : samedi 10 juin 2017 12:40
À : Capt'n Flash <contact at>
Cc : webextensions-support at
Objet : Re: Access to proxy parameters




On Fri, Jun 9, 2017 at 10:33 AM, Andrew McKay <amckay at <mailto:amckay at> > wrote:

On 9 June 2017 at 08:44, Capt'n Flash <contact at <mailto:contact at> > wrote:
> Hello,
> We are trying to migrate our Firefox extension to the new webextension
> standard, and we have some difficulties.
> 1.       We need to open the proxies preferences. Not changing it, but only
> open. Actually, we do :
> openDialog("chrome://browser/content/preferences/connection.xul");
> How can we do the same with webextension ?

That's not possible.


As Andy says, that's not possible. But that does not mean your end goal is not possible. What does your extension do with the proxy preferences? There is a proxy API you can use to change proxy settings. Have you looked at it?




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