# \[Blog post\] Mozilla's Manifest v3 FAQ

**URL:** <https://discourse.mozilla.org/t/blog-post-mozillas-manifest-v3-faq/44608>\
**Category:** Announcements\
**Tags:** manifest-v3\
**Created:** [September 3, 2019, 2:58pm UTC](https://discourse.mozilla.org/t/blog-post-mozillas-manifest-v3-faq/44608 "2019-09-03T14:58:11Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![caitlin](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/caitlin/32/6091_2.png) [@caitlin](https://discourse.mozilla.org/u/caitlin)\
**Post date:** [September 3, 2019, 5:56pm UTC](https://discourse.mozilla.org/t/blog-post-mozillas-manifest-v3-faq/44608/5 "2019-09-03T17:56:37Z")

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Hey @plwt, that’s a good question. This may affect themes – the version number in the manifest file would need to be updated if we move to a “version 3” – and there are some changes that would impact [dynamic themes](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/Themes/Theme_concepts#Dynamic_themes). It’s still too early to say anything more specific, though.

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