Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Form input widget type="number" does not display the correct value for large integers

dtougas
dtougas
more options

The following input field does not display the correct value in Firefox 57.0.3 (OS X 10.12.6):

<input type="number" name="id" value="20609529146343161" />

When viewed, the field shows "20609529146343200" instead of the actual value.

The following input field does not display the correct value in Firefox 57.0.3 (OS X 10.12.6): <input type="number" name="id" value="20609529146343161" /> When viewed, the field shows "20609529146343200" instead of the actual value.

All Replies (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

Hmm, up to 16 characters good, after that, bad. (This is on Windows 7.)

  • 1234567890123456 OK (increment works as expected)
  • 12345678901234567 BAD (increment rounds/invisible)
  • 1234567890123.01 OK
  • 12345678901234.01 BAD

I don't see this documented: https://developer.mozilla.org/docs/Web/HTML/Element/input/number

This bug seems to be related: Bug 1164402 - 16+ digit strings typed into <input type=number> by a user can't reliably be obtained via input.value