firefox plugin, not able to detect xpcom dll from inside xpi

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COM

Firefox

XPCOM

web_development

I have created a xpcom firefox plugin it is working fine if i copy manually the directory to extension folder and restarts firefox.[it is asking for to allow the permission and works fine].

but if I zip's and renamed it as .xpi and upload in server to download onclick.

Firefox is downloading the xpi file in extension but not uncomcressing the plugin.
as a result the xpcom dll the not detecting by firefox.

but if I go and manually unzip inside extension and restarts firefox its running fine.

SO what I thought the main problem is no exe or dll can run from inside a zip file in firefox.

So my problem is how to tell firefox that install this plugin by unzipping because it have some binary data.

I tried searching rdf file chrome.manifest file document for that but didn't get anything helpful.


please help me. :(