How can I permanently and globally disable Firefox's annoying and useless "leave page" confirmation?
40302
Malicious "confirm navigation" dialogs?
114251
Change Firefox address bar behavior
60862
How to disable Chrome's Incognito Mode?
123643
How to remove remembered autocomplete items in Firefox and Chrome?
126334
How can I prevent Firefox from updating to a newer version
73642
Programmatically disable window.location.reload?
129468
Firefox: how to stop and inspect new styles added when hovering on an element?
51025
How to prevent closing browser window?
134096
Can we ignore visitors without JavaScript enabled?
133893
Javascript, Firefox: how to disable the browser specific cell controls?
23594
Can we have an option to disable the "don't forget to accept" reminder?
17444
How to disable Google Chrome's Auto-update feature?
100942
How to close current tab in a browser window?
136460
Best way to detect when a user leaves a web page?
52961
Disable Tabbing in Firefox 3, Chrome 4 and IE8?
102569
When a user closes a , hide that  on all site pages
88943
How can I close a browser window without receiving the "Do you want to close this window" prompt?