Historically, plugins were essential for browsers. However, modern browsers have moved away from third-party plugins (specifically those using technology called NPAPI) in favor of built-in HTML5 capabilities and internal PDF viewers.
Understanding the different categories of plugins helps you choose the right tools for your workflow: plugin adobe reader
However, the landscape of web browsing has changed significantly. If you are confused about whether you still need this plugin, how to install it, or why your PDFs aren’t opening the way they used to, this guide covers everything you need to know. Historically, plugins were essential for browsers