Even without any extensions installed, uses over 3 seconds of CPU time, so it's harder to separate random variation from the impact of an extension. This chart only shows the 5 extensions with the biggest impact on performance.
DARK READER NO LONGER WORKS ON YOUTUBE CODE
As a result the page loads much more slowly, as we'll see later on.Ĭoupon code finder Honey also significantly impacts site speed on ecommerce websites, adding 825 ms of CPU processing time.įinally, when running the tests on the Toyota homepage, we can see that Norton Password increases CPU activity the most, adding about 1 second of CPU time. When testing extensions on the Apple homepage we can see that a dark mode extension called Dark Reader spends 25 seconds analyzing and adjusting images so that they better fit into a dark theme. The results above were collected on a very simple website and generally represent the minimum per-page performance impact of a Chrome extension. The speed impact of a browser extension depends on the website opened by the user. While a few hundred milliseconds may not sound like much, if multiple extensions are installed this can have a significant impact on user experience. If you try to interact with the page during this time the response will feel sluggish.Įach of these browser extensions has been installed over a million times. It spends 368 milliseconds running code on every page you open. Many Chrome extensions have the ability to run extra code on every page you open, although well-built ones only run code where necessary.Īmong the 100 most popular Chrome extensions, Evernote Web Clipper has the biggest negative impact on performance. How do these browser performance results compare to last year's?.What happens if I have more than one extension installed?.
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