Bookmarklet to activate reader mode in Firefox on Android
<p>Recently a change happened with Firefox on Android which stopped me from using the work around of adding something to my reading list and opening it from there to force a page into reader mode. With that in mind I tried to find and then finally make a bookmarklet to force a page into reader mode for me.</p>

<p>So far I have found that by adding 'about:reader?url=' to the beginning of a url will try to open any page into reader mode. From there not knowing much about javascript I tried to cludge together something using other examples I found on the web. To start I just figured out how to add to the url and was able to get that working</p>

<pre><code>javascript: window.location = window.location + 'about:reader?url=';
</code></pre>

<p>The above will add onto the end just fine but when I move it to the beginning it no longer works so when I try</p>

<pre><code>javascript: window.location = 'about:reader?url=' + window.location;
</code></pre>

<p>Nothing happens at all even on a page that will just allow reader mode. When I replace the stuff I am adding with just 'test' though it will happily cause the page to go to 'testhttp://www.google.com/' or wherever else. I have tried it on not only my android phone but also my desktop. What am I doing wrong as from what I can see this should work?</p>