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you tube issues (Mac)

User Help for Mozilla Firefox
jrrjbl
 
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Post Posted September 15th, 2017, 2:49 am

I have, like apparently many , issues with youtube. Either taking from an email or an embedded url in FF, I get a black screen with "your browser does not currently recognize and of the video formats available" and directs me to https://www.youtube.com/html5

I have searched this board and not found anything to this specific issue. I am running FF 55.0.3 on a 2013 IMAC running 10.12.6. Apple professes no knowledge and says "use Safari" which I dislike all together.

I have tried safe mode and it doesn't work. Any suggestions or do I just have to go to Chrome?

Thanks
Last edited by DanRaisch on September 15th, 2017, 4:05 am, edited 1 time in total.
Reason: Added (Mac) to subject line.

RobertJ
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Post Posted September 15th, 2017, 7:15 am

.
This youtube video

https://www.youtube.com/watch?v=L4iyPXHM89E

and others play on FF55.0.3, FF56beta and FF57Nightly on Mac OS 10.12.6

.
FF 58.0 - FF 58b16 - Palemoon 27.6.2 - TB 52.5.2 - Mac OSX 10.13.2
Computers I've used: IBM 7094/UNIVAC 1108/IBM 360/DEC PDP11/DEC VAX-11 780/DEC VAXstation 8000/Sun SPARCstation 2/Mac from 1984 to 2018

jrrjbl
 
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Joined: September 1st, 2006, 4:39 am

Post Posted September 15th, 2017, 8:15 am

Robert
May be the case, but it doesn't run on mine in any way. My fear is somewhere or how, I hit the wrong check mark and caused this.

RobertJ
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Post Posted September 15th, 2017, 9:21 am

Try creating a new temporary profile. Quit FF and then go to

Applications -> Utilities

and launch Terminal.app

Then paste this in exactly without the quotes

"/Applications/Firefox.app/Contents/MacOS/firefox -P"

and hit return

You will see a screen that looks like this

Image

click on the "Create Profile" button and follow the instructions. See if that helps.

To go back to your old or default profile simply quit and restart FF from the profile manager and select your default profile.


.
FF 58.0 - FF 58b16 - Palemoon 27.6.2 - TB 52.5.2 - Mac OSX 10.13.2
Computers I've used: IBM 7094/UNIVAC 1108/IBM 360/DEC PDP11/DEC VAX-11 780/DEC VAXstation 8000/Sun SPARCstation 2/Mac from 1984 to 2018

jrrjbl
 
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Joined: September 1st, 2006, 4:39 am

Post Posted September 15th, 2017, 9:52 pm

I will give it a try in the morning. I have figured out a clumsy way to keep FF working. I have defaulted Safari as prime but use FF as the lead. When I need youtube capabilities, it will automatically bring up Safari and runs just fine. When finished minimize Safari to dock and toggle to always open ff. Stupid but works like a charm.

In the morning I will try your way. Thanks much

jrrjbl
 
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Joined: September 1st, 2006, 4:39 am

Post Posted September 16th, 2017, 4:09 am

That worked. Obviously in the clean version I lost all bookmarks etc. Hopefully there can be a simple transfer of "stuff". My guess is it could also transfer the fault as well.

DanRaisch
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Post Posted September 16th, 2017, 4:12 am

Transferring data file by file and testing between transfers can give you access to the old data without transferring the problem.

http://kb.mozillazine.org/Transferring_ ... _-_Firefox

jrrjbl
 
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Post Posted September 16th, 2017, 5:51 am

Thanks Dan. I am only concerned re bookmarks and passwords. I am convinced that having 7 Flash/youtube add ons are my problem. Just not sure which or all to remove. I will probably take a chance and remove all 7 and see what happens.

DanRaisch
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Post Posted September 16th, 2017, 5:57 am

Which "7 Flash/youtube add ons" do you have installed?

jrrjbl
 
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Post Posted September 16th, 2017, 6:26 am

Now I only have three Flash Video Player, Youtube video download and converter and You Tube video player and speed. I can't remember the other four but none were not "official" rather recommended fixes over the years, these are now gone.
Lots of stupid on my part. Still not sure what I should have installed.

DanRaisch
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Post Posted September 16th, 2017, 12:17 pm

You should only need Adobe Flash player. Anything beyond that is optional and you should remove them until you determine if they are involved in/causing the problems.

JayhawksRock

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Post Posted September 16th, 2017, 1:26 pm

hope this is not suggested already
Check this in About:config > media.gmp.decoder.enabled > true
Fixed my setup ..... but I'm on Windows
"The trouble with quotes on the internet is you never know if they are genuine" ...Abraham Lincoln

jrrjbl
 
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Post Posted September 16th, 2017, 10:37 pm

Well cleaned out all the superfluous"players and loaded adobe flash over again. Changed default to FF as default again browser. Right back to black screen and no you tube. This is ridiculous

jrrjbl
 
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Post Posted September 17th, 2017, 4:07 am

Now awake with coffee. Realized by mistake that Youtube Flash player has an option to designate HTML5 video play. I picked it for laughs. Bingo, dark screens now show videos. Now this is subject to change if the earth's electrical fields reverse but will see if this works going forward.
Robert the video you initially said to try to open does not work but said it was "not available" rather than the format not available message.

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