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<p>Hi, <br>
</p>
<p>I had a problem with Firefox 51.0.1 for Linux Mint (64bit),<br>
as I wrote you recently. <br>
</p>
<p>The problem was: <br>
</p>
<p>If I click at a link inside an recently opened webpage (!) <br>
instead of loading the new website from this link <br>
I get an error messages ("page not found"). <br>
</p>
<p>This happens not if I type the same address directly into the URL
line, <br>
or when I right-klick the link to be opened in a new tab.<br>
</p>
<p>So I looked closer and I found out: <br>
</p>
<p><b>Something sort of "translates" the URL wrongly. </b><br>
</p>
<p>For example: Instead any "#" character in an URL <br>
comes up changed into "%23" in the new URL field. <br>
And there Firefox cannot deal with it.<br>
</p>
So I looked closer and found out: <b>The culprit is the Add-On</b>
<br>
<b>"Download YouTube Videos, Fast And Simple</b>", <br>
It was last time updated July 2015 (!), and the website <br>
"dfromyoutube.com" is also no more available,<br>
so it might be dead.<br>
<p>By deactivating this Add-On <br>
the Problem I mentioned above ceases to exist.</p>
<p>Hope this was helpful for you.<br>
</p>
-- <br>
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<p>With regards / Liebe Grüße, <br>
<br>
Ing. Adolf Hochhaltinger <br>
Schelmergasse 8 / 2 <br>
2700 Wiener Neustadt <br>
Austria / Europe<br>
<br>
Tel: +43(0) 680 3333 981 </p>
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