How can I set a web browser to save any web pages, which I have visited automatically for offline use and offline view?
I'd recommend looking into Offline Site Explorer. You set it up with a URL, choose to stay on the server or follow links, and let it go. Downloads file after file until it's reached everything on the site or continues going if you removed the restraints.
I think it depends what browser you're using. For any/all of them Read It Later and Instapaper do both with Bookmarklets (a script you add to your bookmarks bar which you click while on a site to save later). With both of them you can save things in a 'text view' or 'web view' this former is jsut the text and the second preserves the web page as well as it can. However none of these do it 'automatically' you have to click the bookmarklet.
Read it later has a native Firefox Addon while Instapaper doesn't but you can use Instasave with the latter which adds an icon (a blue plus) in your toolbar.
I found a Firefox addon that includes the functionality you're looking for and few other features. Check it out,
I wrote two posts on offline browsing. One covers Scrapbook, a Firefox extension for saving single pages, the second introduces HTTrack, a tool that can save html pages for offline browsing.
These tools don't provide an automatic solution, but maybe they are helpful anyways. Good luck!
Truth is, most sits don't want you to do that, and many have created ways to prevent you from doing it. It was not hard to do when sites were mostly static html, but since most sites are dynamic nowadays, and the data is being fed from a live database, I doubt you'd be able to have your browser save them automatically. :(
You used to be able to do it in IE 6 by saving it as a bookmark and clicking make it available offline. But I can't see that feature in the more modern versions.
Or saving the page by choosing file, save page as
Or bookmarking the page may work.
Or use Gears for Google products
Remember, if the page is automatically updated, generated (dynamic), all you will get is that page. So it would be hopeless to stay up to date with MUO, read your emails etc.