Show and Tell: shooting a 14-year-old FireFox bug

Today, Peter tells us about his stretch goal of fixing a 14-year-old FireFox bug for everybody in the community, instead of just patching it:

Fixing a election bug with substitute elements

Enjoy, and remember to leave your questions and comments on the post.

Hi @billwear,
The hyperlink was pointed to, it might be a typo.

thanks, @maasuser1. fixed it.