The reason for the rejections was emailed to you. To summarize:
1. All uploads must be zip files.
2. All icons for object dock must be .png or .ico. You can not submit jpegs or gifs or any other image format.

If you're going to resubmit, you have to meet those guidelines. They're great looking icons, they just didn't fit the guidelines.

You can always try submitting them one by one, each in a Zip File.... Too bad about the inconvenience on your part, but it's a good feeling when someone downloads your work, and maybe even leaves a comment, it's worth work you put into it. by the way, great job on those...

you can put them all in one zip if you like so long as you have them all in the preview image.

Ok, here are your options:
1. Place all similar icons (i.e. all the same style) in one zip file and upload them as a pack. Make a single preview image that shows all the icons. List out all the included icons in the description area. This way, people can easily get all of your icons at once, a pack that matches.
2. Zip and upload each icon separately, individually named, individual descriptions. This may make it easier to find individuals, but harder to find matching sets.

We don't reformat or reupload any submissions. We check them for meeting requirements and accept/reject them accordingly.

Glad to be of help, I look forward to seeing your icons resubmitted

These are really nice icons. I wish I had the talent to do such nice ones. I'm always looking for new Firefox ones. It looks like you got a great on there. Good luck!