A friend of mine just hates those little beeping error notices. I don’t know about you but for some, it’s like a rusty nail on a blackboard. With Firefox, you may find one of those beeping sounds when you the Find feature doesn’t get a match for your word or phrase string. It’s accompanied by the Find textbox going red and a warning sign indicating “Phrase not found.”

If you’re annoyed by that beeping sound then this little tweak is for you:

• Access the about:config page.
• Find the accessibility.typeaheadfind.enablesound preference name
• Double-click on it to change the value to false
• The changes take effect instantly