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!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Firefox won't submit a form, but other websites do

more options

I have a form which submits in all cases in all browsers except Firefox. In some cases, the form will submit, but we are hitting an edge case where the form does not submit. FF isn't recognizing the submit action for some reason. The exact same steps work in other browsers (Chrome, Safari and IE).

My form has a "please wait..." loading indicator that correctly launches, but no network traffic is happening while this spins. It essentially hangs the page, since to the user it appears that it's being processed, but nothing was ever submitted to be processed.

Is there a known issue that a workaround exists for, or is this a new issue?

I'm running version 42.0 on a Mac; OS El Capitan. I ran through the troubleshooting steps prior to making this post; Safe Mode, disabled Plug-Ins, Signed out of my sync account, re-installed FF. Nothing made a difference.

I have a form which submits in all cases in all browsers except Firefox. In some cases, the form will submit, but we are hitting an edge case where the form does not submit. FF isn't recognizing the submit action for some reason. The exact same steps work in other browsers (Chrome, Safari and IE). My form has a "please wait..." loading indicator that correctly launches, but no network traffic is happening while this spins. It essentially hangs the page, since to the user it appears that it's being processed, but nothing was ever submitted to be processed. Is there a known issue that a workaround exists for, or is this a new issue? I'm running version 42.0 on a Mac; OS El Capitan. I ran through the troubleshooting steps prior to making this post; Safe Mode, disabled Plug-Ins, Signed out of my sync account, re-installed FF. Nothing made a difference.

All Replies (3)

more options

Hi Nicole, intermittent problems are especially difficult to troubleshoot.

Have you noticed this problem on Windows as well, or is it limited to Mac?

If you open Firefox's Browser Console (Cmd+Shift+j) and check it for error messages when you submit the form, do you notice anything there? (It's usually helpful to click the Clear button along the top to declutter the console before taking the action you are investigating.)

If you open Firefox's Network Monitor in the lower part of the tab before submitting the form, can you see any POST request being sent when you submit? More information on the Network Monitor: https://developer.mozilla.org/docs/Tools/Network_Monitor

more options

Hi @jscher2000,

The browser console shows nothing when I open it, clear it, and then try to submit my form.

the network monitor shows all my activities except the POST when I submit my form. Nothing is logged in that instance.

I can reproduce the issue on demand; it's intermittent in that some submissions work just fine. But there is one submission which FF isn't picking up for some reason. It's the same general form, but the information being submitted is different. As I write this, it makes me wonder what we're doing differently in formatting the various submissions, but I'm still stuck on why it works in all other browsers.

I tested on Windows 7, Firefox 41.01.1 with the same results.

more options

Hi Nicole, you could try setting a breakpoint in the debugger and stepping through the code during a non-working submission. If the only difference between a working and non-working submission is the user input, perhaps there is a silent validation error?