It will be stored in the user profile directory somewhere, but the exact location will be different for each browser on each platform (for example, Firefox vs. Chrome vs. Safari, etc. and Windows vs. Linux vs. Mac OS X, etc.). )
Is there any reason you want to know, or just curiosity? For example, I'm sure Firefox stores it in:
C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile-name>\webappsstore.sqlite
Dean harding
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