Just a few months after the launch of Firefox 4.0, Mozilla has decided that this version will no longer be supported. Firefox 4.0 only received one update, version 4.0.1, which was released in April. This means that in order to have a safe browser, you are recommended by Mozilla to update to Firefox 5.
Mozilla 4.0 has reached EOL status (End of Life) now that the company has decided to update the browser far more frequently in order to compete with Google Chrome.
It's 2022, every browser should have this.
Web browsers collect a massive amount of our web history data. These options can help with that.
A major source of revenue for Mozilla.
