Extensions add more bloat to your browser, after all.
But if you aren’t comfortable with messing around with settings, an extension will make sure you don’t break anything.
Mozilla Firefox is still among the most popular web browsers today.
Specifically, it will remove all add-ons and customizations, and restore browser settings to defaults. Smartly, while all the performance and settings revert to default, Firefox saves your personal information, including bookmarks, history, passwords, cookies, auto-fill information, and your dictionary.
So it’s like a new Firefox with all your data already loaded. Former Firefox developer Robert O’Callahan says that your antivirus is why Firefox is running slow. In a blog post, he explained how the antivirus affects performance and even slows down updates.
No Script's unique whitelist based pre-emptive script blocking approach prevents exploitation of security vulnerabilities (known and even not known yet! You can enable Java Script, Java and plugin execution for sites you trust with a simple left-click on the No Script status bar icon (look at the picture), or using the contextual menu, for easier operation in popup statusbar-less windows.
Watch the "Block scripts in Firefox" video by cnet. We've got reports of No Script's icon disappearing after updating to 5.1.2.
For Mozilla Firefox users, this means choosing the right settings, the right extensions, and tab management. There are easy extensions for apps like disabling Pocket and other integrations, and finding the most memory-draining apps.