Agapa Session Manager is a session manager extension for chrome. also, it is browser manager extension. it's a free extension , it has 111 active users since released its first version, it earns an average rating of 2.80 from 5 rated user, last update is 3938 days ago.
With Agapa Session Manager you can save you current browser windows and tabs and restore them whenever you want. Supports multiple sessions, save session to file, import session from file.
50% user give 3-star rating, 50% user give 2-star rating. Read reviews of agapa session manager
You could find more help information from agapa session manager support page.
More about manifest_file of agapa session manager.
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I cannot recommend this as there is no immediate reference or prompts that indicates this extension is going to trigger the run in the background which set the browser to launch in the background. To me this is sneaky. Why? I have used other session applications that work just well without triggering this or needing to launch the browser on startup.
Very basic, no support for updating saved sessions. You have to create a new one and delete the previous...