In Chrome, for example, sync saves all bookmarks, extensions, preferences and themes to your Google Account. Use any other Internet-connected computer, and all you need to do is fire up Chrome and log in to your Google Account through the browser’s sync feature. Voila! All your favorite browser settings are ready to use on the new machine.
In the Google Chrome browser, you’ll notice a little something extra in the Options menus: a direct link to the Adobe Flash Player storage settings manager. This link makes it easy to control local data stored by Adobe Flash Player (otherwise commonly known as "Flash cookies"), which can contain information on Flash-based websites and applications that you visit. Just as you can manage your browser cookies, you should be able to easily control your Flash cookies settings as well.
Chrome has integrated Adobe Flash Player and a PDF viewer into the browser, so that both these popular plug-ins are also auto-updated.
Another technique that modern browsers like Chrome use to fetch and load web pages much more quickly is called “DNS pre-resolution”. The process of translating a web address into an IP address through a DNS lookup, or vice versa, is often called “resolving.” With DNS pre-resolution, Chrome will simultaneously look up all the other links on the web page and pre-resolve those links into IP addresses in the background. So when you do actually click on one of the links on the page, the browser is ready to take you to the new page instantly. Over time, Chrome also learns from past visits so that the next time you go to a web page that you’ve previously visited, Chrome knows to automatically pre-resolve all the relevant links and elements on the web page
Microsoft's contribution to AJAX is cautiously acknowledged -
But the dynamic web as we know it today truly came to life when XHR (XMLHttpRequest) was introduced into JavaScript, and first used in web applications like Microsoft Outlook for the Web, Gmail and Google Maps.
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