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Firefox 128 ESR-next Releases not reading firefox.cfg

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Ruben Gomez
Ruben Gomez
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My company has been using the same customized autoconfig.js without issue since last year's FF 115 esr release on our Ubuntu servers.

cat /opt/firefox-115.13.0esr/defaults/pref/autoconfig.js pref("browser.tabs.inTitlebar", 0); pref("general.config.filename", "firefox.cfg"); pref("general.config.obscure_value", 0); pref("general.config.sandbox_enabled", false); pref("pdfjs.annotationEditorMode", 1);

Now we are testing the 128 esr next releases with the same config and getting the failed to read the configuration file. please contact your system administrator error

cat /opt/firefox-128.1.0esr/defaults/pref/autoconfig.js pref("browser.tabs.inTitlebar", 0); pref("general.config.filename", "firefox.cfg"); pref("general.config.obscure_value", 0); pref("general.config.sandbox_enabled", false); pref("pdfjs.annotationEditorMode", 1);

If remove pref("general.config.obscure_value", 0); or set it to 1, the error goes away, but our actual firefox.cfg does not get read and are configs are not present at all.

My company has been using the same customized autoconfig.js without issue since last year's FF 115 esr release on our Ubuntu servers. cat /opt/firefox-115.13.0esr/defaults/pref/autoconfig.js pref("browser.tabs.inTitlebar", 0); pref("general.config.filename", "firefox.cfg"); pref("general.config.obscure_value", 0); pref("general.config.sandbox_enabled", false); pref("pdfjs.annotationEditorMode", 1); Now we are testing the 128 esr next releases with the same config and getting the '''failed to read the configuration file. please contact your system administrator''' error cat /opt/firefox-128.1.0esr/defaults/pref/autoconfig.js pref("browser.tabs.inTitlebar", 0); pref("general.config.filename", "firefox.cfg"); pref("general.config.obscure_value", 0); pref("general.config.sandbox_enabled", false); pref("pdfjs.annotationEditorMode", 1); If remove pref("general.config.obscure_value", 0); or set it to 1, the error goes away, but our actual firefox.cfg does not get read and are configs are not present at all.
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cor-el
cor-el
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You would normally only place these lines in autoconfig.js. 

pref("general.config.filename", "firefox.cfg");
pref("general.config.obscure_value", 0);
pref("general.config.sandbox_enabled", false);

All other settings should be in autoconfig.cfg (firefox.cfg) in the main level.

Did you check the Browser Console for possible errors with the autoconfig.cfg file?