How to create xpi file with 7Zip?

Question

I would like to pack my firefox extension as xpi file. I tried by adding it to archive and name it as filename.xpi

But when i try to install it on firefox am getting "package corrupted" message. Is there any way i can create a valid xpi file ?

I have installed cygwin and tried to execute zip command to create xpi file. But got zip is not a command error.

Can somebody guide me to get it done ?

Answer 1

When pack extension using 7z, compress into .zip and then rename to .xpi, dont compress i