Html5 Developer

I'm using html5 video for a site and have both mp4 and ogg formats supported. The height of the… Read more Html5 Mp4 Video With Firefox Resizing Video

This code works on all browsers except Firefox (forms sent successfully, the redirect works, the si… Read more The Form Code Does Not Work In Firefox (submit And Alert)

I am looking for a way to improve the workflow in a PHP based CMS. There is a lot of switching betw… Read more Creating New Tab / Switching Between Tabs In Firefox?

Is there any plugin in firefox or function in firebug or something else, that lets me se the positi… Read more How Can I Get The Position Number Of An Element?

So, I created a nice little html5 video player with a playlist and some jQuery transitions between … Read more Html5 Video And Firefox

I've written this simple code for centering my inner div: And it works fine in Chromium. but n… Read more Vertically Centering A Flex Item Works In Chrome But Not Firefox

I am having a lot of trouble with table cell paddings in Chrome. It seems that if a table cell does… Read more Table Cell Padding Woes With Chrome

Downloading multiple blobs in chrome, edge and IE doesn't seem to be a problem, but on Firefox … Read more Firefox Downloading Multiple Files At Once Not Possible?

I'm aware that FF4 doesn't allow the use of window.blur() unless 'Raise or lower window… Read more Window Popups - How To Get Window.blur() Or Window.focus() To Work In Firefox 4?

I want to create a textarea which highlights the text beyond a character limit (like the twitter on… Read more Div And Textarea Behave The Same Except In Firefox - What To Do?

I am trying to make a button in the Firefox Add-on Builder that will change the URL that the search… Read more Firefox Addon Builder Preferences-services Not Working For Me--why?

Any video (that I can make) with a white background becomes grey in Firefox, Chrome, and Safari (it… Read more Firefox, Chrome, Safari Have Grey Background For Mp4 Html5 Video

I'm trying to use the HTML5 geolocation API; but I have problems to make it work on Firefox Chr… Read more Html5 Geolocation Won't Work In Firefox, Chrome And Chromium

When I have the above line in the section of a plain html page, Fir Solution 1: This is due to … Read more Double Hyphen In Script Makes Firefox Render Strangely

I'm playing with browser and audio. I'm doing this var session = { audio:… Read more Firefox: Navigator.getusermedia Is Not A Function

This is a peculiar problem but is happening only in a particular version of Mozilla Firefox 53.0b9.… Read more Html5 "required" Validation Is Not Showing Error Message In Mozilla Firefox

I have an html5 appcache running on a website, it works fine in Safari, Opera and Chrome but it fai… Read more Html 5 Appcache Works In Safari/opera/chrome But Not Firefox

I want to achieve an horizontal click and dragg website, it works perfectly in Chrome but not in Fi… Read more Click And Drag On Links In Firefox Are Blocking Mouseup Events

How do I expand/collapse an html field in Firefox? I incorporated a few JavaScript examples from th… Read more Expand Collapse Html Field Firefox

I have a queastion about ActiveXObject in javascript. I have tryed this code in Mozila FireFox 6.0.… Read more Javascript Activexobject