Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

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

Whenever I try to upload a file to a website I get an error message.

more options

Every time I try to attach a document in a gmail message, upload a video to youtube, or post pictures to facebook I receive an error message saying that the upload failed due to a firewall or proxy but will upload in the basic uploader version of each. I don't use any proxies and can't find firewalls to turn them off to see if that would help.

Every time I try to attach a document in a gmail message, upload a video to youtube, or post pictures to facebook I receive an error message saying that the upload failed due to a firewall or proxy but will upload in the basic uploader version of each. I don't use any proxies and can't find firewalls to turn them off to see if that would help.

所有回覆 (3)

more options

Tools > Options >> Advanced, then the Network tab, Connections - Settings button

See if Use System Proxy Settings is selected? Try using No Proxy, instead.

more options

I already tried that unfortunately and had no luck.

more options

I, too, cannot upload files. I cannot attach files to gmail, either. IE works fine. I checked no proxy also.