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Storing data with GM_getvalue in incognito mode

Is it possible to save data permanently with GM_getValue in incognito Mode (chrome) ?

I saw suggestions that I can enable "Store data in Incognito" under Tampermonkey Security settings. But that particular setting seems missing. I also saw screenshot from others where it was visible.

Solution

  • Tampermonkey on Chrome:

    1. Data stored in Incognito Mode is lost when incognito is left.
    2. I saw no Tampermonkey setting that would change that (Tampermonkey 4.8).
    3. Google Chrome does not want extensions saving data in incognito mode:

      Incognito mode promises that the window will leave no tracks. When dealing with data from incognito windows, extensions should honor this promise. If an extension normally saves browsing history, don't save history from incognito windows. However, extensions can store setting preferences (only) from any window, incognito or not.


    Tampermonkey on Firefox:

    1. GM_setValue data stored in/from Private Windows is preserved.
    2. I saw no Tampermonkey setting that would change that (Tampermonkey 4.9.5921).