├── .gitignore
├── chrome.manifest
├── content
    └── style.css
├── Makefile
├── bootstrap.js
├── install.rdf
└── README.rst


/.gitignore:
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1 | *.xpi
2 | 


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/chrome.manifest:
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1 | content		no-close-buttons	content/
2 | 


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/content/style.css:
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1 | .tab-close-button { display: none !important; }
2 | 


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/Makefile:
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1 | xpi:
2 | 	zip -r no-close-buttons.xpi bootstrap.js chrome.manifest install.rdf content
3 | 


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/bootstrap.js:
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 1 | /* This Source Code Form is subject to the terms of the Mozilla Public
 2 |  * License, v. 2.0. If a copy of the MPL was not distributed with this
 3 |  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 4 | 
 5 | 'use strict';
 6 | 
 7 | var sss = Components.classes["@mozilla.org/content/style-sheet-service;1"].getService(Components.interfaces.nsIStyleSheetService);
 8 | var ios = Components.classes["@mozilla.org/network/io-service;1"].getService(Components.interfaces.nsIIOService);
 9 | var uri = ios.newURI('chrome://no-close-buttons/content/style.css', null, null);
10 | 
11 | function startup(data, reason) {
12 |     sss.loadAndRegisterSheet(uri, sss.USER_SHEET);
13 | }
14 | 
15 | function shutdown(data, reason) {
16 |     sss.unregisterSheet(uri, sss.USER_SHEET);
17 | }
18 | 


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/install.rdf:
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 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <!-- This Source Code Form is subject to the terms of the Mozilla Public
 3 |    - License, v. 2.0. If a copy of the MPL was not distributed with this
 4 |    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 5 | <RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:em="http://www.mozilla.org/2004/em-rdf#">
 6 |   <Description about="urn:mozilla:install-manifest">
 7 |     <em:id>no-close-buttons@xavamedia.nl</em:id>
 8 |     <em:version>0.1.2</em:version>
 9 |     <em:type>2</em:type>
10 |     <em:bootstrap>true</em:bootstrap>
11 |     <em:unpack>false</em:unpack>
12 |     <em:multiprocessCompatible>true</em:multiprocessCompatible>
13 | 
14 |     <!-- Firefox -->
15 |     <em:targetApplication>
16 |       <Description>
17 |         <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
18 |         <em:minVersion>31.0a1</em:minVersion>
19 |         <em:maxVersion>31.0</em:maxVersion>
20 |       </Description>
21 |     </em:targetApplication>
22 | 
23 |     <!-- Front End MetaData -->
24 |     <em:name>No Close Buttons</em:name>
25 |     <em:description>Remove close buttons from tabs</em:description>
26 |     <em:creator>Dirkjan Ochtman &lt;dirkjan@ochtman.nl&gt;</em:creator>
27 |     
28 |   </Description>
29 | </RDF>
30 | 


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/README.rst:
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 1 | No Close Buttons
 2 | ================
 3 | 
 4 | Firefox 57 and later
 5 | --------------------
 6 | 
 7 | Firefox 57 and later `do not support`_ any API to make this extension work.
 8 | If you prefer your browser tabs without close buttons, you can make it work
 9 | by adding a custom ``userChrome.css`` file to your Firefox profile:
10 | 
11 | #. Find your `profile folder`_
12 | #. Create a directory called ``chrome`` inside it if one does not already exist
13 | #. Create a file named ``userChrome.css`` in the new directory
14 | #. Add the following CSS code to it:
15 |    
16 |    .. code-block:: css
17 | 
18 |       @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
19 |       .tab-close-button { display: none !important; }
20 |    
21 | 
22 | #. Open "Advanced Preferences" by typing ``about:config`` in the address bar.
23 | #. Search for ``toolkit.legacyUserProfileCustomizations.stylesheets`` and set it to ``true``.
24 | #. Restart Firefox
25 | 
26 | History
27 | -------
28 | 
29 | In Firefox 31, the browser.tabs.closeButtons option was removed.
30 | This restartless addon forces what previously used to be a value of 2 for that option:
31 | no close buttons on any tabs.
32 | 
33 | .. _do not support: https://bugzilla.mozilla.org/show_bug.cgi?id=1392589
34 | .. _profile folder: http://kb.mozillazine.org/Profile_folder
35 | 


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