# Can't install extension on Mozilla Firefox Linux 49.01 OpenSuse Tumbleweed, Promise Error

**URL:** <https://discourse.mozilla.org/t/cant-install-extension-on-mozilla-firefox-linux-49-01-opensuse-tumbleweed-promise-error/11684>\
**Category:** Add-on Support\
**Created:** [October 25, 2016, 10:20am UTC](https://discourse.mozilla.org/t/cant-install-extension-on-mozilla-firefox-linux-49-01-opensuse-tumbleweed-promise-error/11684 "2016-10-25T10:20:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![MobDev](https://avatars.discourse-cdn.com/v4/letter/m/b4bc9f/32.png) [@MobDev](https://discourse.mozilla.org/u/MobDev)\
**Post date:** [October 25, 2016, 10:20am UTC](https://discourse.mozilla.org/t/cant-install-extension-on-mozilla-firefox-linux-49-01-opensuse-tumbleweed-promise-error/11684/1 "2016-10-25T10:20:24Z")

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Hello!

May be someone know how to fix this issue.

When I install addon (signed at [addons.mozilla.org](http://addons.mozilla.org)) from local file, or from [addon.mozilla.org](http://addon.mozilla.org), nothing happening.

If I run firefox from console, it it some error in console:

```
A coding exception was thrown in a Promise rejection callback.
See https://developer.mozilla.org/Mozilla/JavaScript_code_modules/Promise.jsm/Promise

Full message: TypeError: is not iterable
Full stack: AddonInstall.prototype.initLocalInstall/<@resource://gre/modules/addons/XPIProvider.jsm:5336:1
Handler.prototype.process@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:940:21
this.PromiseWalker.walkerLoop@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:816:7
this.PromiseWalker.scheduleWalkerLoop/<@resource://gre/modules/Promise.jsm -> resource://gre/modules/Promise-backend.js:750:11

```

In Firefox Safe mode it the same error. It’s happening with many extensions.  
OS: Linux Tumbleweed  
Firefox version: MozillaFirefox-49.0.1-1.7.x86\_64

---

<div class="post-metadata">

**Author:** ![jorgev](https://avatars.discourse-cdn.com/v4/letter/j/71c47a/32.png) [@jorgev](https://discourse.mozilla.org/u/jorgev)\
**Post date:** [October 25, 2016, 9:26pm UTC](https://discourse.mozilla.org/t/cant-install-extension-on-mozilla-firefox-linux-49-01-opensuse-tumbleweed-promise-error/11684/2 "2016-10-25T21:26:13Z")

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I suggest you [file a bug report](https://bugzilla.mozilla.org/enter_bug.cgi?product=Toolkit&component=Add-ons%20Manager) for it.