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In Google Chrome, is it possible to set tabs to hibernate when not in use (to reduce memory usage)? I've noticed that Chrome starts to lag significantly on my machine when I have more than 20 tabs open. It's already possible to do this in Firefox (since some extensions have been developed for this purpose), but I haven't found any equivalent for Chrome.

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The TooManyTabs extension for Chrome is able to suspend idle tabs. I'm not sure if it does this automatically for tabs that have been open for a long time. –  Anderson Green Feb 18 '13 at 16:09
    
Also, the TabMemFree extension may be able to do this: lifehacker.com/5891916/… –  Anderson Green Mar 1 '13 at 1:55
    
Relevant search results for this question can be found here (using a regular expression search): google.com/… –  Anderson Green Mar 1 '13 at 2:00
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Also, there is an extension called The Great Suspender that can do this as well. It appears to be the most sophisticated of all the options I've seen. –  Anderson Green Mar 1 '13 at 2:01
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2 Answers

You can try out the TooManyTabs extension for Chrome. One of its listed features:

Suspend idle tabs and save memory, organize with custom columns.

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Is the TooManyTabs extension able to suspend tabs automatically when a large number of tabs are open, or does it need to be done manually? –  Anderson Green Feb 18 '13 at 16:12
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@AndersonGreen: I think you need to do this manually. The video mentions, "simply click the TMT arrow to pop them to 'Suspended Tabs' column, they are saved across sessions. Video and form states aren't saved though.". You then need to "click on a suspended tab to see them restored." –  w3d Feb 18 '13 at 16:30
    
@w3d I still need to automatically hibernate tabs that are using too much memory. I haven't yet found any other Chrome extensions that can do this, but it might be possible to write one. –  Anderson Green Feb 18 '13 at 17:55
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As the OP mentions, The Great Suspender does this job very well.

It functions almost exactly like an old userscript I wrote called Hibernate Idle Tabs, which can work in other browsers too, but I think The Great Suspender may be a bit more efficient.

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