Transposing chords on tab4u and possibly other chord websites
If you use websites that takes money from transposing chords to different scales (like tab4u.com) then this extension is for you.
It lets you change the scale using client-side script, avoiding the website fee.
Note: This extension currently works on tab4u.com website and could be used in the future on other services, depending on the demand.
Contact me for any suggestions and improvements.