Include plasma-browser-integration for browser integration out of the box

These are it's features:
Media Controls
Lets you control video and audio players in websites using the Media Controller plasmoid, media keys on your keyboard, and even remotely from your phone
Send links via KDE Connect
Adds a context menu entry to links, enabling you to send them to your phone and other paired devices
Show and control downloads from Plasma’s notification area
Add downloaded files to recent documents for quick access throughout the Plasma desktop
Optionally store the URL a file was downloaded from in its metadata
Let websites prompt for sharing contents to other applications
Find browser tabs and search the browser history in KRunner (Alt-Space)
Make sure the "Browser Tabs" module is enabled in Plasma Search (KRunner) settings
Needs to be granted permission to access the browser history in order to search it