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Firefox

Enable Browser Toolbox (userChrome editor)

The Browser Toolbox enables you to debug add-ons and the browser’s own JavaScript code rather than just web pages like the normal Toolbox. The Browser Toolbox’s context is the whole browser rather than justsingle page on a single tab. Enabling the Browser Toolbox

The Browser Toolbox is not enabled by default. To enable it you need to check the settings "Enable chrome and addon debugging" and "Enable remote debugging".

To do this, open the Developer Tools Settings, go to the section Advanced Settings, and check the settings "Enable browser chrome and add-on debugging toolboxes" and "Enable remote debugging".

Opening the Browser Toolbox

Open the Browser Toolbox through the menu button new fx menu and the menu items "Developer" then "Browser Toolbox".

You can also open it with the Ctrl + Alt + Shift + I key combination (Cmd + Opt + Shift + I on a Mac).

Some useful configuration options

Tabs

/opt/change-pref.sh middlemouse.openNewWindow true # false = do nothing /opt/change-pref.sh browser.tabs.opentabfor.middleclick false # so, window /opt/change-pref.sh browser.link.open_newwindow 2 # windows (3 = tabs) /opt/change-pref.sh browser.startup.homepage_override.mstone '"ignore"' /opt/change-pref.sh startup.homepage_welcome_url '"about:blank"' /opt/change-pref.sh startup.homepage_welcome_url.additional '"about:blank"' /opt/change-pref.sh browser.shell.checkDefaultBrowser false /opt/change-pref.sh browser.aboutwelcome.enabled false /opt/change-pref.sh datareporting.policy.firstRunURL '""' /opt/change-pref.sh app.normandy.first_run false

UI

/opt/change-pref.sh toolkit.legacyUserProfileCustomizations.stylesheets true /opt/change-pref.sh browser.tabs.inTitlebar 0 /opt/change-pref.sh network.security.ports.banned.override '""'

Statistics

/opt/change-pref.sh app.shield.optoutstudies.enabled false /opt/change-pref.sh datareporting.healthreport.service.enabled false /opt/change-pref.sh toolkit.telemetry.unified false

Home page

/opt/change-pref.sh browser.startup.homepage '"http://nikiroo.be"'