QuiReader for Firefox
Previewing your completed ePUB / eBook file as designed and intended should never be done only in the development environment. Sideloading to your own tablet, phone and/or ereader may not be convenient. Even if, you may not see it as others will on other devices.
This Firefox plugin will give you an additional way to view an unencrypted ePUB / ebook file as designed and coded internally. Check your work or that of a consultant before uploading the ePUB to your selected vendors.
Find the link in our “Resources >> Internet” section.