Disabling HTML5 autoplay

I'm mentioning this in case it is useful to anyone else - it caused me
quite a bit of hassle to solve. I use the site https://eur.onstar.com. I
went to that URL with Firefox and the page (different pictures on
different visits/refreshes) did not offer me the log in screen that
normally automatically appears. I tried with Chrome and it worked every
time.

 I went through the usual procedure by starting Firefox in safe mode and
adding back extensions until I found the culprit - the Disable HTML5
Autoplay extension. OK, problem solved - but why? I also have a Disable
HTML5 Autoplay extension in Chrome, and that doesn't cause a problem. I
assume that the Firefox extension is broken somehow - so I mention it in
case anyone has the same problem. I don't want to use Chrome for one
site (I changed back to Chrome because it failed to work correctly on
some sites) so I removed the extension. As it is non-essential, I've
removed it from Chrome too - just in case it was causing the problems
with the other sites. Maybe the techie chaps out there will have an
explanation?

-- 
Tetbury, Gloucestershire, England

I take long walks in the morning - before my brain works out what I'm doing!
0
Bob
7/16/2018 8:43:21 AM
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On 16/07/2018 09:43, Bob Henson wrote:
> I'm mentioning this in case it is useful to anyone else - it caused me
> quite a bit of hassle to solve. I use the site https://eur.onstar.com. I
> went to that URL with Firefox and the page (different pictures on
> different visits/refreshes) did not offer me the log in screen that
> normally automatically appears. I tried with Chrome and it worked every
> time.
>
>   I went through the usual procedure by starting Firefox in safe mode and
> adding back extensions until I found the culprit - the Disable HTML5
> Autoplay extension. OK, problem solved - but why? I also have a Disable
> HTML5 Autoplay extension in Chrome, and that doesn't cause a problem. I
> assume that the Firefox extension is broken somehow - so I mention it in
> case anyone has the same problem. I don't want to use Chrome for one
> site (I changed back to Chrome because it failed to work correctly on
> some sites) so I removed the extension. As it is non-essential, I've
> removed it from Chrome too - just in case it was causing the problems
> with the other sites. Maybe the techie chaps out there will have an
> explanation?
>

I am using 52.8.0 and I'm getting the login screen as shown in this picture:

https://i.imgur.com/uZ4xHZT.jpg <https://i.imgur.com/uZ4xHZT.jpg>


I've also tried in Edge and it too is working.

I haven't blocked anything in FF or Edge but I hardly use any Add-Ons or 
extensions or plugins unless they came with FF as defaults.  I have said 
many times that these 3rd party extensions are the main culprit for all 
problems in FF.  People should start getting used to without any 
extensions, plugins and Add-Ons.  FF is a just a tool to browse the web 
and do your business on it.  You don't want to have anything extra that 
is NOT tested or unlikely to be maintained or supported in the case of 
problems by the creators of those Add-Ons.  There is no financial 
incentive to them to spend time supporting something that earns them 
nothing.

-- 
With over 950 million devices now running Windows 10, customer 
satisfaction is higher than any previous version of windows.

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<html>
  <head>
    <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
  </head>
  <body bgcolor="#FCFBE3" text="#000000">
    <div class="moz-cite-prefix">On 16/07/2018 09:43, Bob Henson wrote:<br>
    </div>
    <blockquote
cite="mid:mailman.171.1531730636.17372.support-firefox@lists.mozilla.org"
      type="cite">
      <pre wrap="">I'm mentioning this in case it is useful to anyone else - it caused me
quite a bit of hassle to solve. I use the site <a class="moz-txt-link-freetext" href="https://eur.onstar.com">https://eur.onstar.com</a>. I
went to that URL with Firefox and the page (different pictures on
different visits/refreshes) did not offer me the log in screen that
normally automatically appears. I tried with Chrome and it worked every
time.

 I went through the usual procedure by starting Firefox in safe mode and
adding back extensions until I found the culprit - the Disable HTML5
Autoplay extension. OK, problem solved - but why? I also have a Disable
HTML5 Autoplay extension in Chrome, and that doesn't cause a problem. I
assume that the Firefox extension is broken somehow - so I mention it in
case anyone has the same problem. I don't want to use Chrome for one
site (I changed back to Chrome because it failed to work correctly on
some sites) so I removed the extension. As it is non-essential, I've
removed it from Chrome too - just in case it was causing the problems
with the other sites. Maybe the techie chaps out there will have an
explanation?

</pre>
    </blockquote>
    <br>
    I am using 52.8.0 and I'm getting the login screen as shown in this
    picture:<br>
    <br>
    <a href="https://i.imgur.com/uZ4xHZT.jpg"><img
        alt="https://i.imgur.com/uZ4xHZT.jpg"
        src="https://i.imgur.com/uZ4xHZT.jpg" moz-do-not-send="true"
        border="10" height="860" width="1440"></a><br>
    <br>
    <br>
    I've also tried in Edge and it too is working.<br>
    <br>
    I haven't blocked anything in FF or Edge but I hardly use any
    Add-Ons or extensions or plugins unless they came with FF as
    defaults.  I have said many times that these 3rd party extensions
    are the main culprit for all problems in FF.  People should start
    getting used to without any extensions, plugins and Add-Ons.  FF is
    a just a tool to browse the web and do your business on it.  You
    don't want to have anything extra that is NOT tested or unlikely to
    be maintained or supported in the case of problems by the creators
    of those Add-Ons.  There is no financial incentive to them to spend
    time supporting something that earns them nothing.<br>
    <div class="moz-signature"><br>
      -- <br>
      <div class="moz-signature">
        <div style="width: 330px; background-color: blue; color:
          yellow;font-weight: bolder; font-size:150%; text-align:
          center; margin: 30px 5px 30px 5px;">With over 950 million
          devices now running Windows 10, customer satisfaction is
          higher than any previous version of windows.</div>
      </div>
    </div>
  </body>
</html>

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0
UTF
7/16/2018 4:15:26 PM
In message 
<mailman.155.1531757759.17373.support-firefox@lists.mozilla.org>, 
=?UTF-8?B?8J+YiSBHb29kIEd1eSDwn5iJ?= <Hello.World@example.com> writes:
[]
>I haven't blocked anything in FF or Edge but I hardly use any Add-Ons
>or extensions or plugins unless they came with FF as defaults.  I have
>said many times that these 3rd party extensions are the main culprit
>for all problems in FF.  People should start getting used to without

Yessir. No sir. Three bags full sir.

We're all different; you choose to operate that way, others choose 
differently. I wouldn't dream of saying you "should" use any extensions 
(though your use of "hardly" suggests you do use at least one. By your 
own ruling, you "shouldn't" be using it).

>any extensions, plugins and Add-Ons.  FF is a just a tool to browse the

A lot of extensions are to provide functionality that the Firefox 
developers, for reasons that may even be valid, have decided to remove.

>web and do your business on it.  You don't want to have anything extra
>that is NOT tested or unlikely to be maintained or supported in the
>case of problems by the creators of those Add-Ons.  There is no
>financial incentive to them to spend time supporting something that
>earns them nothing.

No, any more than there is any such incentive for the Firefox developers 
to maintain or support features that people want, including ones that 
are already present (for now).

---
With a monopoly attitude to users, it is not surprising that the 
majority of purchasers of new computers have no option to buy Windows 
10. That doesn't say anything at all about whether they're satisfied 
with it or not.
-- 
J. P. Gilliver. UMRA: 1960/<1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

… too popular actually to be any good. - Alison Graham in Radio Times 2-8
February 2013
0
J
7/16/2018 5:19:50 PM
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