Happily, all these extensions are available through Firefox's Recommended Extensions program for verifying extensions as trustworthy. They're also available for Chrome and Brave, but with no verification.
In my years of using uBlock Origin to keep ads away, I've encountered just one issue, ever. By the time I experienced the problem, users had already long since reported it, there was a fix handy, and the issue was resolved overnight.
One plus of a tool being around a long time is that lots of other people can help you solve any problems that could come up.
It works on YouTube too. Blocking ads doesn't just make your internet experience far less distracting. You also remove a potential attack vector.
Even better selection
Firefox Multi-Account Containers
Particularly useful for compartmentalizing Google, Meta (ahem, Facebook) and other services that relentlessly hoover up information about what you do online. You can make anything Facebook-related services open in a Container just for itself. Consequently, all the information it can then touch will be limited to facebook.com, or instagram.com, or whatever.
For example, you can sandbox your Google or Facebook activity using Firefox Containers. This would make it more difficult for your business competitors to run interference using ads that can track you and your team across the web.
This extension learns on its own to block trackers. If a web app (glossary) breaks, try selectively allowing blocked trackers, but Privacy Badger typically doesn't need any tweaking. Yay!
You can dig into the code, but this extension, like every other one on this page has been vetted by Mozilla for Firefox.
When you use a web app (glossary), the app may pull code from certain servers. This code is often necessary for the app to work correctly. This extension protects you by providing that code to the app directly, and prevents the app from talking to those servers.
Cookie Auto Delete
Also shortened to CAD, Cookie Auto Delete does exactly what it says on the packaging: it deletes your cookies (glossary).
Think of Cookie Auto Delete as a tool that cleans up after you. Typically, as you hop from page to page on the web, each one tries to leave between one and several cookies in your browser. Future pages you touch can see those traces left by previous pages and link up your activity, all behind the scenes.
Also useful if you want to automatically logout of some pages when you close the tab or quit your browser.
This one has been around long time. I remember using it more than a decade ago in Firefox, before Google's Chrome took over.
But, NoScript has a learning curve. Start with the other extensions above, and come back to this when you want to make your life more difficult. By then, I imagine you'd have a good reason to do so.