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Q600: Where can if find Tampermonkey's console output?

A600 Before getting the output you have to enable debug output. Just click at the Tampermonkey icon, choose "Dashboard", select the "Settings" tab and set "Logging Level" to "Debug"". ( video tutorial)

There are 3 different consoles that Tampermonkey might write log messages to.

• First the background context console which can accessed this way:

  In Google Chrome, go to the extensions page by clicking on the "More" icon (the three dots) in the top-right corner of the window, selecting "More tools", and then clicking on "Extensions". On the extensions page, find the extension that you want to access the background context console for, and click on the "Details" link to the right of its name. On the extension's details page, click on the "service worker" (or "background page") link under the "Inspect views" section. This will open the background context in a new window or tab. ( video tutorial)

  In Firefox, go to the extensions page by clicking on the "More" icon (the three minuses) in the top-right corner of the window, selecting "Add-ons and Themes". Click at the gear icon at the upper right corner and choose "Debug Add-ons". On the debugging page find the Tampermonkey entry and click "Inspect". Finally select the "Console" tab.

• The second one is the option page console.

  You can open it this way: right click at the Tampermonkey icon and choose "Dashboard". At the new tab press "Ctrl-Shift-J" or "F12" and select the "Console" tab.

• Last but not least every web page has a console.

  This one can be opened by "Ctrl-Shift-J" when viewing the page. ( video tutorial)