Get the value set in GM_setValue from the Firefox custom extension

Question

Did you know that the Firefox custom extension can read the values ​​set by calling GM_setValue () from a GraseMonkey script user?

Answer 1

These values ​​exist in about: config, (enter "greasemonkey" in the filter).

There may be an easier way to get them, though ...

Answer 2

Since Greasemonkey 1.13 GM_setValue() uses SQLite db to store values. Access to this database can be obtained directly (see https://github.com/greasemonkey/greasemonkey/blob/master/modules/miscapis.js ).