Many site issues can be caused by corrupt cookies or cache.

• Clear the Cache and

• Remove Cookies
  Warning ! ! This will log you out of sites you're logged in to.

Type about:preferences<Enter> in the address bar.

• Cookies; Select Privacy. Under History, select Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.
• Cache; Select Advanced > Network. Across from Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites. Are there any problems?

Then restart.

If you have problems with current Shockwave Flash plugin versions then check this:

• see if there are updates for your graphics drive drivers

https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

• disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)

https://forums.adobe.com/message/4468493#TemporaryWorkaround

• disable hardware acceleration in the Flash plugin

https://forums.adobe.com/thread/891337 See also:

• http://kb.mozillazine.org/Flash#Troubleshooting

FredMcD said

Many site issues can be caused by corrupt cookies or cache.

• Clear the Cache and

• Remove Cookies
  Warning ! ! This will log you out of sites you're logged in to.

Type about:preferences<Enter> in the address bar.

• Cookies; Select Privacy. Under History, select Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.
• Cache; Select Advanced > Network. Across from Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} While you are in safe mode; Type about:preferences#advanced<Enter> in the address bar. Under Advanced, Select General. Look for and turn off Use Hardware Acceleration. Poke around safe web sites. Are there any problems? Then restart.

---

If you have problems with current Shockwave Flash plugin versions then check this:

• see if there are updates for your graphics drive drivers

https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

• disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)

https://forums.adobe.com/message/4468493#TemporaryWorkaround

• disable hardware acceleration in the Flash plugin

https://forums.adobe.com/thread/891337 See also:

• http://kb.mozillazine.org/Flash#Troubleshooting

Did all of it. Didnt help

Start Firefox in Safe Mode {web Link} by holding down the <Shift (Mac Options) > key, and then starting Firefox. Is the problem still there?

Start your Computer in safe mode. Then start Firefox. Try Safe web sites.

Starting The Computer In Safe Mode;
Free Online Encyclopedia

yes, it's still there

Please post some of the links you are having problems with. (Not just one.)

https://www.youtube.com/watch?v=Cq-NShfefks&list=PLSMqBEF4zLUeOVbyR-A7wZqhmmvAP5pOZ&index=88

or u can just go there. https://www.youtube.com/playlist?list=PLSMqBEF4zLUeOVbyR-A7wZqhmmvAP5pOZ

Basically almost every song in the playlist. One song or maybe two might some times play, but most of the time its just loading for like 10 seconds, then it skips to another song. If u try playing same song not in the playlist, like a separate song, after the same time it just stops loading and says "an error has occurred, please try again later. LEARN MORE"

Check these links. I've called the big guys to help you. Good luck.

https://support.mozilla.org/en-US/search?esab=a&w=1&q=Youtube

Hi Lethos, I understand that when you play a playlist and an ad blocker that some some are not playing all the way through. Please check if the playlist works in Safe Mode as well as contact the developer of the ad blocking software.

same problem occurs if i play in safe mode :/ songs dont even start

Checklist:

1. Tools -> Options -> Clear Your Recent History (all) and Remove Individual Cookies;
2. New profile without adblocker, does the playlist play? Profile Manager - Create, remove or switch Firefox profiles
3. Have you disabled flash for youtube and tried the HTML5 player?

so far seems that the first option worked. thank you a lot :)