How to See Which Browser Extensions Are Slowing Down Your Browser
Google Chrome is a multi-process browser and many browser extensions run as their own process. This means that you can use Chrome’s integrated Task Manager to view the memory consumption — and even current CPU usage — of your running browser extensions. The Task manager will also display the resources used by your installed Chrome web apps as well as each open browser tab and other background processes.
To open the Task Manager, click Chrome’s menu button, point to Tools, and select Task Manager. You can also press Ctrl + Escape to quickly open the task manager.
The Task Manager will give you an idea of how heavy each extension is. Bear in mind that only extensions that run in the background are listed here, so extensions that inject code into pages you load may not appear in the list, although they may have an impact on page loading times.
Internet Explorer doesn’t expose the memory used by individual browser add-ons. However, it does give you information about how long each browser add-on takes to load. From this, you can get an idea of how heavy a browser add-on is — if it takes longer to load, it may be consuming more memory as well as slowing things down.
To find this information, click the gear menu in Internet Explorer and select Manage Add-ons. You’ll see each browser extension’s load time listed under the Load time column — to prevent an add-on from loading along with IE, select it in the list and click the Disable button.
Internet Explorer also displays “Navigation time” for each add-on – – that’s how much of a delay an add-on adds each time you navigate to, or load, a new web page.