Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Този сайт ще има ограничена функционалност, докато се извършва тече неговата поддръжка. Ако дадена статия не може реши проблема ви и искате да зададете въпрос, нашата общност е готова да ви помогне на @firefox в Twitter и /r/firefox в Reddit.

Търсене в помощните статии

Избягвайте измамите при поддръжката. Никога няма да ви помолим да се обадите или изпратите SMS на телефонен номер или да споделите лична информация. Моля, докладвайте подозрителна активност на "Докладване за злоупотреба".

Научете повече

youtube thumbnails are grey

  • 3 отговора
  • 1 има този проблем
  • 1 изглед
  • Последен отговор от MARTIN

more options

for the past several days, my youtube thumbnails have been grey boxes. they aren't the standard "no thumbnail :(" grey, instead just a block of grey.

this is not the case for youtube on chrome or on the app. i've tried the following: - restarting firefox (multiple times) - clearing the cache for youtube - reinstalling firefox - restarting my computer - logging out and logging back into my youtube account - using firefox in a private browser

please help.

for the past several days, my youtube thumbnails have been grey boxes. they aren't the standard "no thumbnail :(" grey, instead just a block of grey. this is not the case for youtube on chrome or on the app. '''''i've tried the following:''''' - restarting firefox (multiple times) - clearing the cache for youtube - reinstalling firefox - restarting my computer - logging out and logging back into my youtube account - using firefox in a private browser please help.

Избрано решение

Those images appear to be WebP images if you check this in the Network Monitor, so it is possible that you block WebP images if you see the gray placeholder/background.

You can check this pref on the about:config page and make sure it is true.

  • about:config => image.webp.enabled = true

You can open the about:config page via the location/address bar. If you get the warning page, you can click the "Accept the Risk and Continue" button.

WARNING: modifying prefs directly via the about:config page can sometimes break Firefox or cause strange behavior, and there is no guarantee that this will keep working in future Firefox releases, so be cautious with modifying prefs if you aren't sure you understand their purpose. You should only do this if you know what you're doing.

Прочетете този отговор в контекста 👍 3

Всички отговори (3)

more options

Избрано решение

Those images appear to be WebP images if you check this in the Network Monitor, so it is possible that you block WebP images if you see the gray placeholder/background.

You can check this pref on the about:config page and make sure it is true.

  • about:config => image.webp.enabled = true

You can open the about:config page via the location/address bar. If you get the warning page, you can click the "Accept the Risk and Continue" button.

WARNING: modifying prefs directly via the about:config page can sometimes break Firefox or cause strange behavior, and there is no guarantee that this will keep working in future Firefox releases, so be cautious with modifying prefs if you aren't sure you understand their purpose. You should only do this if you know what you're doing.

Променено на от cor-el

more options

There are also extensions that can block WebP images.

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or userChrome.css is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window
more options

cor-el said

Those images appear to be WebP images if you check this in the Network Monitor, so it is possible that you block WebP images if you see the gray placeholder/background. You can check this pref on the about:config page and make sure it is true.
  • about:config => image.webp.enabled = true
You can open the about:config page via the location/address bar. If you get the warning page, you can click the "Accept the Risk and Continue" button. WARNING: modifying prefs directly via the about:config page can sometimes break Firefox or cause strange behavior, and there is no guarantee that this will keep working in future Firefox releases, so be cautious with modifying prefs if you aren't sure you understand their purpose. You should only do this if you know what you're doing.

ugh, thank you. i had no clue that youtube thumbnails were webp. i personally hate the extension so i was hoping disabling it just meant that i could save photos normally again

Променено на от cor-el