After browser upgrade autostart setting file ignored

User Help for Mozilla Firefox
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Joined: March 12th, 2007, 11:19 pm

Post Posted May 12th, 2018, 6:35 am

It looks like there has changed something in Firefox 60 again (every version some changes related to autostart - this is not funny any more).

For Firefox 60 according to ... autoconfig there should be two files autoconfig.js and firefox.cfg and the user settings in the last file. But there is description for Windows and macOS where to put them, but no info for Linux where to put this two files.

I tried at ~/.mozilla/firefox/<profile>/ directory but settings are not accepted and no error/info returned why not.

Any idea where to put this two files?


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Posts: 20577
Joined: March 10th, 2004, 9:59 pm
Location: Maryland USA

Post Posted May 12th, 2018, 8:50 am

See if what LAR wrote (For Firefox versions v55 and up:) still holds,
Fire 750, bring back 250.
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv: Gecko/20110420 SeaMonkey/2.0.14 Pinball CopyURL+ FetchTextURL FlashGot NoScript

Posts: 2
Joined: June 18th, 2007, 3:30 am

Post Posted June 14th, 2018, 12:12 am

just in case someone is looking for an answer, prefs format changed again and now it looks like this:

Code: Select all
    pref("browser.startup.homepage", "", locked);

so now you can add two attributes, locked and sticky, to any pref. oddly enough this only works for some prefs files, not all.

in my customers we usually modify /usr/lib/firefox/browser/defaults/preferences/syspref.js which in ubuntu is a soft link to /etc/firefox/syspref.js

you can read about these changes here: ... r-firefox/

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