Sorry about the last post, I meant to hit shift and hit return instead and the form was submitted. Sorry about that. Embarrassing... :-/
Anyways, Here is my plugin that the error is getting thrown in: http://github.com/fitzgen/tempest/blob/c403787548e58d5ad60fe0d5230b36c62bd21dc4/jquery.tempest.js And here is the error I receive: [Exception... "'[object Object]' when calling method: [nsIDOMEventListener::handleEvent]" nsresult: "0x8057001c (NS_ERROR_XPC_JS_THREW_JS_OBJECT)" location: "<unknown>" data: no] Line 0 And, as I mess with the VAR_TAG, BLOCK_TAG, and END_BLOCK_TAG regexes, it comes and goes, but seems to be unrelated to the validity of the regular expressions in question. Obviously the message itself is not very informative, and at this point I am plain stuck. Thanks a lot for your time. _Nick_