In addition to sending tabs to sleep by users, let users set a time to automatically send tabs to sleep (e.g. 5 minutes).

I have a couple of Chrome windows with a lot of tabs in each of them and I don't want to lose them. So before I install your extension, I would like to ask you some questions:

1. Will all tabs in all windows be hibernated after installing it?
2. What if Chrome suddenly crashes with my tabs hibernated? Will they be restored on the next start?
   Thanks!

Hello,
it seems, that Chrome has implemented a security feature that prevents to execute data URLs from JavaScript, which causes TabHibernation to not function anymore: if you try to hibernate a tab, the console shows a message like "Not allowed to navigate top frame to data URL: data: ...".

It seems, it is possible to use the src attribute of an <iframe>, though.
Maybe one could replace all the content with an <iframe> or use about:blank and add the <iframe> ? (just guessing; obviously, I'm not much into Extension programming, yet ^^).

From the feature proposal on Google Groups:

Alternative implementation suggestion for web developers
The main use case for navigating to data URLs in the top frame is generating files (HTML, PDF, images etc.) on the fly and displaying them to the user.

For that use case, these alternatives exist:

• Generate the file on the backend and send it to the user over http/https.
• Initiate a download instead of displaying the URL.
• If the contents of the URL is trusted, iframe the URL so that the omnibox displays the site's URL.

Resources:
What does it mean
Intent to Deprecate and Remove: Top-frame navigations to data URLs
Related StackOverflow Question

or else "keypress wakeup" will stop working in Chrome 53 (around september 2016)

see https://www.chromestatus.com/features/5316065118650368

In Chrome one can ctrl+click and shift+click to select multiple tabs. It would be neat if, when multiple tabs are selected, that Tab Hibernation avoids hibernating these tabs.

if Chrome crashes and looses it's history a sleeping tab can't wakeup anymore

JS-Console says:
Uncaught ReferenceError: pageInfo is not defined

Exclude certain URLs from "sending to sleep" by whitelisting them.
e.g.
As a user,
if I'm loading a YouTube video in background while working in another tab,
I don't want to send the YouTube tab to sleep and lose the semi-loaded video.

The latest version of Chrome causes the "Wake Up!" button to go back twice instead of once.

Hello!
Thanks for a good tool!

Would it be possible to add some marker that tab is hibernated, something like page ico + small dot at the corner or so.
It can improve usability of the extension.

Thanks

In recent versions of Google Chrome (and in browsers based on Chromium) this extension does not work. These are approximately versions of Chrome in February and March.

https://developer.chrome.com/webstore/i18n

add a configurable list of pages, that are not send to sleep when sleep-button is pushed.
This would be interesting for sites with dynamic Contant (Chats, Socialnetworks.)

The ability to assign keyboard shortcuts would greatly improve usability for me. 'Send inactive tabs to sleep' and 'Wake up' would be sufficient.

I cann't remove the extension from my chrome, it can Installation itself in my chrome.
Could you tell me how to remove it?
Is this a bug? :)
Thanks!