User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0 (Beta/Release) Build ID: 20130618035212 Steps to reproduce: On my website: http://www.galapagos.to/MAPS/INDEX.PHP, practically every link opens a small window to display an image of a map. One example is the following: http://www.galapagos.to/MAPS/L-945.HTM (it's the first link on the above page). Actual results: When the L-945.HTM file opens in a small window, the Error Console reports the following errors: XUL box for_moz-generated_content_ . . . children to be wrapped in a block. Unknown property 'box-sizing'. Declaration dropped. (This line displayed three times, first with "box-sizing: border-box; (and so on)" and then twice with "padding-0; (and so on)." However, if I instead use the above URL to directly open the L-945.HTM file, no error messages appear, and the page validates in strict mode at validator.w3.org Expected results: No errors should be reported, as there are none. This set of Error Console messages started appearing several months ago -- I guess after one of the Firefox updates. So, is there any way to kill these apparently incorrect messages? Thanks, John Woram
I see no error message about your website with FF23 on Win 7. 1) Update to Firefox 23. 2) Try in safe mode: https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode 3) Try with a clean profile: https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles Does it fix it?
Component: General → Untriaged
Product: Core → Firefox
I did an update to 23, then reset FF. That didn't fix it, so I did a clean profile, and that didn't fix it either. However, now I only see 3 warnings: Unknown property 'box-sizing'. Declaration dropped. (repeats 3 times, with the following (which is line 2 in each warning). chrome://web-developer/content/toolbar/html/element-ancestors.html The final line of each warning is: box-sizing:border-box; (and so on) First warning. padding:0; . . . box-sizing:content-box; (and so on) The final lines of warnings 2 and 3 are identical.
(In reply to John Woram from comment #2) > chrome://web-developer/content/toolbar/html/element-ancestors.html This indicates the warnings are coming from the "Web Developer" add-on . Could you please start Firefox in safe mode with add-ons disabled as Loic suggests and report back if the warnings still happen? The MDN box-sizing page  says (at the very bottom) that "There isn't yet a non-prefixed implementation in Gecko," so the add-on should be using -moz-box-sizing instead of box-sizing.  https://addons.mozilla.org/en-US/firefox/addon/web-developer/  https://developer.mozilla.org/en-US/docs/Web/CSS/box-sizing
We are not able to repro these error messages with a clean profile. Maybe contact the add-on dev and tell him about this bug. About Avast like others, these security suites imply various bad behaviors for the user when they are trying to sniff internet traffic. Not really new.
Resolving WFM since this sounds like a problem with the add-on.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 5 years ago
Resolution: --- → WORKSFORME
You need to log in before you can comment on or make changes to this bug.