What are plugins ? How do you install these on a web browser ?

A plug-in (also called plugin, add-on, or extension) is a software component that adds a specific feature to an existing computer program such as a web browser.

To install a plugin on a web browser, we need to look for extensions store, which for example, on Google Chrome, it is Chrome web store and for Opera, it is Opera Extension Store.

For Google Chrome,

(i) Open extensions by typing chrome://extensions in the address bar and from the side bar, click at Open Chrome web store at the bottom.

(ii) It will open Chrome web store, wherefrom choose the desired plug in/add on and click on it to install.

For Opera browser,

(i) Click on Opera menu → Extensions → Get Extensions command.

(ii) It will open the Opera extension store, wherefrom we can look for desired plug in/add on and click on it to install it.