# Zero compatible add-ons for Thinderbird 52.9.1 32 bits

**URL:** <https://discourse.mozilla.org/t/zero-compatible-add-ons-for-thinderbird-52-9-1-32-bits/30399>\
**Category:** Thunderbird\
**Created:** [July 24, 2018, 12:42pm UTC](https://discourse.mozilla.org/t/zero-compatible-add-ons-for-thinderbird-52-9-1-32-bits/30399 "2018-07-24T12:42:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nisiadomi](https://avatars.discourse-cdn.com/v4/letter/n/97f17d/32.png) [@nisiadomi](https://discourse.mozilla.org/u/nisiadomi)\
**Post date:** [July 24, 2018, 12:42pm UTC](https://discourse.mozilla.org/t/zero-compatible-add-ons-for-thinderbird-52-9-1-32-bits/30399/1 "2018-07-24T12:42:45Z")

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I want to add signature addon to my Thunderbird but Firefox show the message that it can’t install the addon because it SEEMS to be corrupted.  
There are 6 or about 20 addons concernig signature (including quite new ones) and NON OF THEM is OK according to Firefox!!!  
What is going on??? Why can’t I install any addon??? 😠  
I have Firefox Quantum 61.0.1 (64 bits)

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**Author:** ![WaltS48a](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/walts48a/32/19335_2.png) [@WaltS48a](https://discourse.mozilla.org/u/WaltS48a)\
**Post date:** [July 24, 2018, 1:51pm UTC](https://discourse.mozilla.org/t/zero-compatible-add-ons-for-thinderbird-52-9-1-32-bits/30399/2 "2018-07-24T13:51:47Z")

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See this support post.

[https://support.mozilla.org/en-US/kb/thunderbird-add-ons-frequently-asked-questions#w\_installing-add-ons-downloaded-from-outside-thunderbird-e-g-using-a-web-browser-like-firefox](https://support.mozilla.org/en-US/kb/thunderbird-add-ons-frequently-asked-questions#w_installing-add-ons-downloaded-from-outside-thunderbird-e-g-using-a-web-browser-like-firefox)