I am quite opinionated about browsers and web experience as well. As computers have become more powerful, and bandwidth cheaper and more plentiful, there has been a trend towards bloat and frivolity.
My deal is that I don’t mind some plugin content within the page - but I need the page itself to remain static. It completely bugs me out to try reading or clicking UI elements and have them move around the page. I need my pages rendered still and rather flat - with actual links instead of everything scripted. When I got into the internet in the 90s, it seemed to me that the purpose was to make access to information easy. This meant things like real directory structures. This experience was at odds with a more corporate, top-down approach of directing the users experience. So now I put up with sites which are 95% pictures, and look and read like big-print books for young children. Sorry, I don’t speak “picture-ese”.
Using a plugin such as noscript for Firefox restores much of the control to the user, but is also inconvenient, because you then see how much your experience being hijacked is taken for granted. It’s not unusual for a site to not work, and be expecting you to automatically connect to 20-30 other sites. It would be helpful if they bothered to inform the user, such as “this bit of our content is hosted by Akamai” or such, but I have never seen anybody do this. Instead, they all assume that your browsing is going to be insecure and promiscuous. Also, I dislike browsers telling sites which page I am viewing, or what part of them I am reading - just load the page, and let me deal with it. Also, I think “just-in-time” page loading is bloody awful for accessing data. I hate leaving a page and needing to reload 26 pages to get back to one bit instead of loading it as a discrete page directly,
I recommend checking out text-based browsers such as Links, Elinks, Lynx, etc. They avoid a lot of clutter, speed page loading, and are easier to drive from the keyboard without mousing around. I do think that markup-based browsers offer more readability and formatting options than raw text - and I wish more sites would offer such things with cleaner, better typographical layouts.