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autoconfig use of profile-after-change

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  • Last reply by cor-el

keith.loepere
keith.loepere
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Before Firefox 60, the autoconfig file (.cfg file) could register an observer for "profile-after-change" (so as to change things such as the default search engine), like this: 

   Components.utils.import("resource://gre/modules/Services.jsm");
   Services.obs.addObserver(observer, "profile-after-change", false);

This no longer works (the first line fails outright). Is there a new way to register such an observer in an autoconfig file?

Before Firefox 60, the autoconfig file (.cfg file) could register an observer for "profile-after-change" (so as to change things such as the default search engine), like this: Components.utils.import("resource://gre/modules/Services.jsm"); Services.obs.addObserver(observer, "profile-after-change", false); This no longer works (the first line fails outright). Is there a new way to register such an observer in an autoconfig file?

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cor-el
cor-el
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If you check the Browser Console then you will likely notice a message that "Autoconfig is sandboxed by default" (bug 1479857).

A possible workaround for now is to add a line in the autoconfig.js file disable this feature.

  • pref("general.config.sandbox_enabled", false);

Note that this pref might be removed in future Firefox versions.