I always used a lot of extensions with Google Chrome to tailor it to my liking and to streamline my workflow. This was especially true when I was working as a web developer as I needed a lot of tools that are otherwise completely unnecessary for everyday use. Let's see what I still use in May 2020.
During the development of a website, the caching of .css and .js files can be a problem, especially when dealing with less tech-savvy clients who do not understand that the changes you made might not be visible to them due to their browser caching previously downloaded content.
It is always nice to add a scrolling effect for links that point to an ID on the same HTML page - and it is really easy to do with a few lines of code if you are already using jQuery.
I tried at least 30 different Wordpress themes for this blog and to my surprise it was really hard to find one that fulfilled all my criteria. Not that I had huge expectations: Classic blog layout, clean aesthetics, easy to read and no huge header image.
You can easily auto generate a clickable table of contents with jQuery if your text is divided by (the same level of) headers. All you need to do is to wrap your text in a container div and use the setInnerLinks() function.
When you embed a YouTube video it is good practice to restrict the related videos that appear at the end of playback to your channel only. Just imagine how your business would be affected if your competitors video would appear right on your own website.