Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多
Solved

Firefox downloads images instead of opening them

Nick01234

I've noticed of late that Firefox will not open .webp files in browser, instead automatically downloading without asking (I have the "Always ask you where to save files" option ticked). It then opens the photo in a new tab while leaving the now blank original image tab open with the URL from which it was downloaded. Under the applications section i have set webp images to "open in Firefox" rather than "save file" and would appreciate advice on resolving this issue.

I've noticed of late that Firefox will not open .webp files in browser, instead automatically downloading without asking (I have the "Always ask you where to save files" option ticked). It then opens the photo in a new tab while leaving the now blank original image tab open with the URL from which it was downloaded. Under the applications section i have set webp images to "open in Firefox" rather than "save file" and would appreciate advice on resolving this issue.
附加的畫面擷圖
從原來的回覆中察看解決方案

選擇的解決方法

Their server is misconfigured. It doesn't know what webp is, so when requested standalone, it ships it as an unknown type, and is handled as such on the recipient side too (triggering download).

If you try to open a webp original e.g. from wikipedia: https://commons.wikimedia.org/wiki/File:Wikipedia-logo-v2-webp.webp you should get the expected results.

所有回覆 (3)

Looks like proper settings.

Which Os and Fx versions and could you please attach a .webp file so I can test it here.?

Thanks

I am on Firefox 150.0.3 and Windows 11 26200.8457. (both are the current up to date version) I was reading this short story and attempted to open both the image on the right and the simulacra profile pictures which are .webps and both resulted in the issue. https://scp-wiki.wikidot.com/scp-9698 Thank you for your prompt response!

選擇的解決方法

Their server is misconfigured. It doesn't know what webp is, so when requested standalone, it ships it as an unknown type, and is handled as such on the recipient side too (triggering download).

If you try to open a webp original e.g. from wikipedia: https://commons.wikimedia.org/wiki/File:Wikipedia-logo-v2-webp.webp you should get the expected results.

問個問題

如果您還沒有帳號,您必須先登入帳號 來回覆文章。還沒有帳號的話,只能發問新問題。