Main Menu: Options Menu: Use built-in browser
If this box is checked, RIMMF will use its own browser to navigate web-links, otherwise it will use your default browser.
RIMMF comes with its own web browsing tool, which may be used for browsing the RDA Toolkit, the MARC documentation at LC, and links to other external sources.
The advantages of this browser are that it is lightweight. The disadvantages are that it does not have any of the options that would be available in a mainstream browser.