Title: Upload Doesn't Complete with Firefox
Last modified: August 22, 2016

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# Upload Doesn't Complete with Firefox

 *  Resolved [riricher](https://wordpress.org/support/users/riricher/)
 * (@riricher)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/upload-doesnt-complete-with-firefox/)
 * I select a file and click Upload. On Firefox (33.0.2)the progress bar advances
   about 80% (regardless of file size) and stalls. No upload completed. Works fine
   on IE 9.
 * [https://wordpress.org/plugins/wp-file-upload/](https://wordpress.org/plugins/wp-file-upload/)

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Thread Starter [riricher](https://wordpress.org/support/users/riricher/)
 * (@riricher)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/upload-doesnt-complete-with-firefox/#post-5441940)
 * Some more information. I said Disable AJAX (by adding forceclassic=”true” to 
   the sortcode) and now it works. Unfortunately the progress bar no longer does(
   probably requires AJAX).
 * Any change you’re using Synchronous AJAX? That might cause uploads to lock up.
 *  Thread Starter [riricher](https://wordpress.org/support/users/riricher/)
 * (@riricher)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/upload-doesnt-complete-with-firefox/#post-5442108)
 * Never mind. My host company disabled postbacks since someone was trying to hack
   my site. Reenabled and now works.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Upload Doesn't Complete with Firefox’ is closed to new replies.

 * ![](https://ps.w.org/wp-file-upload/assets/icon-256x256.png?rev=3252590)
 * [Iptanus File Upload](https://wordpress.org/plugins/wp-file-upload/)
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 * [Support Threads](https://wordpress.org/support/plugin/wp-file-upload/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-file-upload/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-file-upload/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-file-upload/reviews/)

## Tags

 * [Firefox](https://wordpress.org/support/topic-tag/firefox/)
 * [upload file](https://wordpress.org/support/topic-tag/upload-file/)

 * 2 replies
 * 1 participant
 * Last reply from: [riricher](https://wordpress.org/support/users/riricher/)
 * Last activity: [11 years, 7 months ago](https://wordpress.org/support/topic/upload-doesnt-complete-with-firefox/#post-5442108)
 * Status: resolved