# Server-side (mainly PHP) scripts in Mozilla add-ons

**URL:** <https://discourse.mozilla.org/t/server-side-mainly-php-scripts-in-mozilla-add-ons/10034>\
**Category:** Development\
**Created:** [August 1, 2016, 4:29pm UTC](https://discourse.mozilla.org/t/server-side-mainly-php-scripts-in-mozilla-add-ons/10034 "2016-08-01T16:29:07Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![lipocodes](https://avatars.discourse-cdn.com/v4/letter/l/54ee81/32.png) [@lipocodes](https://discourse.mozilla.org/u/lipocodes)\
**Post date:** [August 1, 2016, 4:29pm UTC](https://discourse.mozilla.org/t/server-side-mainly-php-scripts-in-mozilla-add-ons/10034/1 "2016-08-01T16:29:08Z")

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Hi folks,

Can you tell me what is the formal policy regarding using server-side scripts while using add-ons i.e what are the restrictions on using PHP/Python scripts as server side?

Thank you for your help,  
Larry P.

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**Author:** ![jorgev](https://avatars.discourse-cdn.com/v4/letter/j/71c47a/32.png) [@jorgev](https://discourse.mozilla.org/u/jorgev)\
**Post date:** [August 1, 2016, 11:02pm UTC](https://discourse.mozilla.org/t/server-side-mainly-php-scripts-in-mozilla-add-ons/10034/2 "2016-08-01T23:02:16Z")

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The technologies used on the server side are irrelevant for add-on review purposes. All that matters is that the add-on communicates with the server via data APIs, and doesn’t download any code to execute.

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**Author:** ![lipocodes](https://avatars.discourse-cdn.com/v4/letter/l/54ee81/32.png) [@lipocodes](https://discourse.mozilla.org/u/lipocodes)\
**Post date:** [August 3, 2016, 8:46am UTC](https://discourse.mozilla.org/t/server-side-mainly-php-scripts-in-mozilla-add-ons/10034/3 "2016-08-03T08:46:41Z")

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Mr. Villalobos, Thank you for your rapid answer.

Do you allow trial add-ons i.e add-ons that work (with all their features) for a period of time, then the user can keep using them only upon payment / subscription?

Thanks in advance,  
Larry P.

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**Author:** ![jorgev](https://avatars.discourse-cdn.com/v4/letter/j/71c47a/32.png) [@jorgev](https://discourse.mozilla.org/u/jorgev)\
**Post date:** [August 3, 2016, 2:51pm UTC](https://discourse.mozilla.org/t/server-side-mainly-php-scripts-in-mozilla-add-ons/10034/4 "2016-08-03T14:51:18Z")

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No, the core features need to be permanently free if you want your add-on to be listed.