This addon adds following functionalities:

Display of technical field and variable names
Quickly switch to page on other instance; focusses tab, if already open
Depending on field type, there additional information or functionalities
- In classical interface and portal:
  - Show choice lists
- In classical interface:
  - Open selected record in new tab (if list type, open first record)
  - Open selected table in new tab, or open table definition in new tab
  - Format text as JSON
  - Display filters/condition strings in human-readable form of readonly records
  - Add links to error sources in syslog
  - List client scripts New: and UI policies
  - Quick search function in navigator (must be enabled from addon settings)
  - Select whole column in lists via button
  - Quick edit query text of lists and related lists using middle mouse button on filter icon
  - New: Copy values to clipboard using [Ctrl]+[Click] on technical field name
  - New: Beta: A "Show around" item in context menu of date time list fields (must be enabled from addon settings)
- In portal:
  - List and view details of client scripts and ui policies
  - Open catalog item definition
  - Open variable definition in new tab
  - Open widget editor of macro variable in new tab
  - Referred table name
  - View reference qualifier
Dark theme in script fields 😎 (must be enabled via addon settings)

By default, the addon is enabled for all instances hosted on subdomains of service-now.com. Further domains (e.g. on-premises instances) can be enabled via the functionality offered when clicking on the addon icon in the toolbar. The information and functionalities added by the addon can be shown/hidden via the checkbox "Show extended info". This applies to all tabs and all domains. Required permissions:

*.service-now.com: Add functionalities to ServiceNow instances
Tabs: For the instance switcher to search and select an existing tab

Note: The author of this add-on is not affiliated with ServiceNow.