Gnome extensions are designed to extend the functionally of your Gnome desktop. Gnome extensions are also a great way to customize your desktop to add tools and functionally based on per user requirements. This article lists some of the best extensions available.
Gno-Menu extension adds a traditional Menu button for a fast and organized navigation between your installed applications.
Simple ToDo list. Great for people who like to tick their daily progress and stay focused on the tasks ahead without the overhead of other complex ToDo list alternatives.
Drop Down Terminal
Although the old days when you would not be able to use your Linux desktop without a terminal are long over you might from time to time need to execute some commands. Drop Down terminal simply appears out of nowhere to listen to whatever you might need to say.
Applications Overview Tooltip
I'm not exactly sure why this extension is not installed by default. Gnome activities grid needs to shorten all long application names which makes it harder for the user to guess the application purpose. Applications Overview Tooltip extension solves this issue brilliantly.
Simple to use clipboard. Search history of your clippings and mark them as favorites for an easy access.
OpenWeather extensions will show weather information for your pre-selected city/location.
NetSpeed allows user to monitor network Upload and Download speeds.
EasyScreenCast allows for an easy integration of Gnome's video recording function. It is easy to use and provides numerous additional features.
By default when switching between currently opened applications using ALT+TAB the only information given to the user about any particular application is its name and icon. Coverflow Alt-Tab extension gives a real preview of the application before user makes a selection.
Dynamic Top Bar
As the extension description suggests "Let the top bar become transparent when no window is maximized" dynamic top bar will make the top gnome panel transparent. Once you maximize any window the top panel reverts to the default.