diff --git a/chrome/content/zotero/components/button.jsx b/chrome/content/zotero/components/button.jsx
index 4bc679a985..e9f4485c5e 100644
--- a/chrome/content/zotero/components/button.jsx
+++ b/chrome/content/zotero/components/button.jsx
@@ -1,3 +1,28 @@
+/*
+    ***** BEGIN LICENSE BLOCK *****
+    
+    Copyright © 2019 Corporation for Digital Scholarship
+                     Vienna, Virginia, USA
+                     https://digitalscholar.org
+    
+    This file is part of Zotero.
+    
+    Zotero is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    
+    Zotero is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+    
+    You should have received a copy of the GNU Affero General Public License
+    along with Zotero.  If not, see <http://www.gnu.org/licenses/>.
+    
+    ***** END LICENSE BLOCK *****
+*/
+
 'use strict'
 
 const React = require('react')
diff --git a/chrome/content/zotero/components/form/input.jsx b/chrome/content/zotero/components/form/input.jsx
index 12dfc56d2f..e64f5a8af1 100644
--- a/chrome/content/zotero/components/form/input.jsx
+++ b/chrome/content/zotero/components/form/input.jsx
@@ -1,3 +1,28 @@
+/*
+    ***** BEGIN LICENSE BLOCK *****
+    
+    Copyright © 2019 Corporation for Digital Scholarship
+                     Vienna, Virginia, USA
+                     https://digitalscholar.org
+    
+    This file is part of Zotero.
+    
+    Zotero is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    
+    Zotero is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+    
+    You should have received a copy of the GNU Affero General Public License
+    along with Zotero.  If not, see <http://www.gnu.org/licenses/>.
+    
+    ***** END LICENSE BLOCK *****
+*/
+
 import React from 'react';
 import PropTypes from 'prop-types';
 import cx from 'classnames';
diff --git a/chrome/content/zotero/components/search.jsx b/chrome/content/zotero/components/search.jsx
index 5e448afbfe..82d00fcb34 100644
--- a/chrome/content/zotero/components/search.jsx
+++ b/chrome/content/zotero/components/search.jsx
@@ -1,3 +1,28 @@
+/*
+    ***** BEGIN LICENSE BLOCK *****
+    
+    Copyright © 2019 Corporation for Digital Scholarship
+                     Vienna, Virginia, USA
+                     https://digitalscholar.org
+    
+    This file is part of Zotero.
+    
+    Zotero is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    
+    Zotero is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+    
+    You should have received a copy of the GNU Affero General Public License
+    along with Zotero.  If not, see <http://www.gnu.org/licenses/>.
+    
+    ***** END LICENSE BLOCK *****
+*/
+
 'use strict';
 
 const React = require('react');
diff --git a/chrome/content/zotero/components/tagSelector.jsx b/chrome/content/zotero/components/tagSelector.jsx
index 85dc0aa04a..0881a55924 100644
--- a/chrome/content/zotero/components/tagSelector.jsx
+++ b/chrome/content/zotero/components/tagSelector.jsx
@@ -1,3 +1,28 @@
+/*
+    ***** BEGIN LICENSE BLOCK *****
+    
+    Copyright © 2019 Corporation for Digital Scholarship
+                     Vienna, Virginia, USA
+                     https://digitalscholar.org
+    
+    This file is part of Zotero.
+    
+    Zotero is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    
+    Zotero is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+    
+    You should have received a copy of the GNU Affero General Public License
+    along with Zotero.  If not, see <http://www.gnu.org/licenses/>.
+    
+    ***** END LICENSE BLOCK *****
+*/
+
 'use strict';
 
 const React = require('react');
diff --git a/chrome/content/zotero/components/tagSelector/tagSelectorList.jsx b/chrome/content/zotero/components/tagSelector/tagSelectorList.jsx
index 1e4397942f..29045e7e0f 100644
--- a/chrome/content/zotero/components/tagSelector/tagSelectorList.jsx
+++ b/chrome/content/zotero/components/tagSelector/tagSelectorList.jsx
@@ -1,3 +1,28 @@
+/*
+    ***** BEGIN LICENSE BLOCK *****
+    
+    Copyright © 2019 Corporation for Digital Scholarship
+                     Vienna, Virginia, USA
+                     https://digitalscholar.org
+    
+    This file is part of Zotero.
+    
+    Zotero is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    
+    Zotero is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+    
+    You should have received a copy of the GNU Affero General Public License
+    along with Zotero.  If not, see <http://www.gnu.org/licenses/>.
+    
+    ***** END LICENSE BLOCK *****
+*/
+
 const React = require('react');
 const PropTypes = require('prop-types');
 const { FormattedMessage } = require('react-intl');
diff --git a/chrome/content/zotero/containers/tagSelectorContainer.jsx b/chrome/content/zotero/containers/tagSelectorContainer.jsx
index 8928d38b96..4b633fc9ef 100644
--- a/chrome/content/zotero/containers/tagSelectorContainer.jsx
+++ b/chrome/content/zotero/containers/tagSelectorContainer.jsx
@@ -1,3 +1,28 @@
+/*
+    ***** BEGIN LICENSE BLOCK *****
+    
+    Copyright © 2019 Corporation for Digital Scholarship
+                     Vienna, Virginia, USA
+                     https://digitalscholar.org
+    
+    This file is part of Zotero.
+    
+    Zotero is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    
+    Zotero is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+    
+    You should have received a copy of the GNU Affero General Public License
+    along with Zotero.  If not, see <http://www.gnu.org/licenses/>.
+    
+    ***** END LICENSE BLOCK *****
+*/
+
 /* global Zotero: false */
 'use strict';
 
diff --git a/chrome/content/zotero/modules/filePicker.js b/chrome/content/zotero/modules/filePicker.js
index 828dd7801a..3d45d41675 100644
--- a/chrome/content/zotero/modules/filePicker.js
+++ b/chrome/content/zotero/modules/filePicker.js
@@ -1,3 +1,28 @@
+/*
+    ***** BEGIN LICENSE BLOCK *****
+    
+    Copyright © 2019 Corporation for Digital Scholarship
+                     Vienna, Virginia, USA
+                     https://digitalscholar.org
+    
+    This file is part of Zotero.
+    
+    Zotero is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    
+    Zotero is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+    
+    You should have received a copy of the GNU Affero General Public License
+    along with Zotero.  If not, see <http://www.gnu.org/licenses/>.
+    
+    ***** END LICENSE BLOCK *****
+*/
+
 import { Cc, Ci, Cu } from 'chrome';
 Cu.import("resource://gre/modules/osfile.jsm");