Extension developers,
Does your extension need <all_urls>?
Chrome 26, now stable, includes the new activeTab permission, which you may be able to use instead. The best part? It doesn’t require a warning message during installation!
The activeTab permission gives an extension temporary access to the currently active tab when the user invokes the extension - for example by clicking its browser action. Access to the tab lasts until the tab is navigated or closed.
Check out the documentation, and try it out!
Peter Ludwig
Chrome Extensions PM
It doesn't work for me in devtools_panel...