We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Using web examples I modified all.js, firefox.js and firefox.cfg but still cannot disable default browser check popup in Firefox 3.511.

more options

Working with Firefox v3.511. This version is required by business requirements. I researched how to disable the default browser as part of the install on the web but I cannot disable the default browser check pop-up.

Working with Firefox v3.511. This version is required by business requirements. I researched how to disable the default browser as part of the install on the web but I cannot disable the default browser check pop-up.

All Replies (2)

more options

It is best not to modify files in the Firefox program folder.

You can lock the pref browser.shell.checkDefaultBrowser to false or create a file user.js in the default template folder (C:\Program Files\Mozilla Firefox\defaults\profile) to set the pref to false.

See http://kb.mozillazine.org/Locking_preferences
pref("browser.shell.checkDefaultBrowser", false);

In user.js you need to use
user_pref("browser.shell.checkDefaultBrowser", false);

Modified by cor-el

more options

Hello Cor-El! Thank you for the response! Your point about the danger of modifying the system files is well taken.

I like the user specific orientation your reference gave me and I'm looking into it but I'm concerned that I'll need to run this type of installation for each user on a shared PC. I saw the Client Customization Kit reference at the top of the article and I'm looking at that as well.

Currently I am still looking at the system file mods and have gotten further by creating a configuration file, firefox.cfg, which appears to then apply the settings for all users on a particular PC. I'm hoping I can use your reference, particularly the CCK to take me the rest of the way. Please let me know if you have an all users solution and I'll post if I find one. Thanks!