在.xpi安装尝试时，加载项与Firefox不兼容

Question

我试图发布我的第一个Firefox扩展程序并且无法安装它。

我使用jpm xpi在包裹上签名。但是，当我尝试安装 .xpi 文件时，出现错误：

[extension name] could not be installed because it is not compatible with Firefox Developer Edition 52.0a2

我也在消费者Firefox版本50.0中试过这个。

当前em代码：

<em:minVersion>0.9</em:minVersion> <em:maxVersion>1.0+</em:maxVersion>

我也试过

 '<em:maxVersion>50.0.*</em:maxVersion>' 

和

 '<em:maxVersion>52.0+</em:maxVersion>'

我当前的XPI文件已托管here

`<?xml version="1.0"?>

<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:em="http://www.mozilla.org/2004/em-rdf#">

  <Description about="urn:mozilla:install-manifest">
  <em:id>lets@stopnormalizing.com</em:id>
    <em:version>1.1</em:version>

<!-- Target Application this extension can install into,
         with minimum and maximum supported versions. -->

<em:targetApplication>
    <Description>
      <!-- Firefox's UUID -->
      <em:id>[myemail]</em:id>
      <em:minVersion>0.9</em:minVersion>
      <em:maxVersion>1.0+</em:maxVersion>
    </Description>
  </em:targetApplication>

  <!-- Front End MetaData -->
  <!-- My_Theme -->
  <em:name>Stop Normalizing</em:name>
  <em:description>my extension description</em:description>
  <em:creator>my name</em:creator>
  <em:homepageURL>my url</em:homepageURL>
<!-- 
  <em:aboutURL>my website URL</em:aboutURL>

  <!-- Front End Integration Hooks (used by Theme Manager)-->
    <em:internalName>Extension_name</em:internalName>
  </Description>

</RDF>`

非常感谢任何帮助。我不知道如何继续。