From their website:
*Short Stories (1 piece up to 3000 words)
*Flash Fiction (1-3 pieces up to 500 words each)
*Poetry ( 3-5 short/average length poems OR 1 long poem)
Multiple submissions are fine, but only submit one of each type before hearing back from us. Example: One Fiction submission and one Flash Fiction submission, or one submission of all three types (Fiction, Poetry, Flash). *Above are what we’ll accept as 1 submission per type.
They should also be separate email submissions. Don’t send us your poetry and fiction in one submission, please. It angers the elves.
Simultaneous submissions are welcome, but please do notify us immediately if it is accepted elsewhere.
Previously published pieces are okay, but they will have to be very, very good to be seriously considered. Please cite where it was published first.
We read on a rolling basis, so we’re taking submissions year round. To submit, email us at email@example.com
Submission time for Issues close on the 24th of each month. Everything we get after the 24th will be considered for the following Issue.
To submit, make the subject of the email “Firefly Submission” plus the category you are submitting to. For example: “Firefly Submission Flash Fiction” or “Firefly Submission Poetry”. Please attach works as a Word.doc or .docx. Keep all submissions in one single document, which each new piece beginning on a separate page.
We also accept illustrations/artwork/photography. Send those to us as a .jpg with the subject line “Firefly Submission Artwork”. Up to 5 pieces at a time, please.
We will try to respond as quickly as we can; responses can be expected within the month of submission. If a month has passed from the day you have submitted to us and you haven’t heard from us, please feel free to send a query with either “Query” or “What The Heck” in the subject line. We find the latter more cathartic. It’s up to you. “