Some extensions that you have installed in Google Chrome may not need to run all the time. Think of an extension that works only on a single website or one that you only use for specific tasks such as development or research.
While some extensions use memory optimization techniques to use little or no memory while idle, others use the same amount all the time.
This may not be a problem if your system has plenty of memory, but if you are using Chrome on a low-end or mid-range system, it may be an issue as these extensions, even if not in use, may use memory that could be of use elsewhere.
You can check out a detailed analysis of the issue here.
In this guide, I mentioned extensions that you can use to quickly switch of a group of or individual extensions. Since you may not need some extensions all the time, you can use the method to quickly turn them off to reduce the memory use of the browser.
Update: It appears that activation has a different meaning than enabling or disabling the extension. While you will notice that an extension will work or won't work if you hit the mapped shortcut, it won't be disabled or enabled as an extension in the browser.
What I did not mention back then was that the Chrome browser ships with a built-in option to enable or disable individual extensions using keyboard shortcuts.
Here is how that works:
The shortcut can be used to toggle the state of the extension. If it is enabled, it will disable the extension and vice verse.
As I have mentioned before, this works only for individual extensions. While you can set a shortcut for all extensions you have installed in Chrome, it becomes less practicable with each extension installed.
If you do have installed one or two, or want to toggle the state of one or two only, then this may be the best solution as you don't have to install another extension to manage the activation state of extensions in the browser.
You will notice that it may take a while before the state is toggled after you hit the shortcut that you have set.
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.