Stack Overflow
Stack Overflow

Questions tagged [firefox]

Mozilla Firefox is a free, open-source cross-platform web browser. Use this tag if your question is related to the inner workings of Firefox or if it relates to code that is not working on Firefox which does work in other browsers. Questions about Firefox add-on development should be tagged [firefox-addon]. If your question is about using Firefox for browsing (i.e. as an end user) you should ask your question on Super User instead.

Firefox is an open source, cross-platform web-browser created by Mozilla. It uses the open source rendering engine and the JavaScript engine.

Standards

Firefox implements many web standards, including (almost full ), , , , , (with extensions), (), , , , and (Animated PNG) images with transparency.

Platform availability

Firefox runs on various operating systems including , , , and , as well as on , and devices. Its source code is licensed under the Mozilla Public License.

There are various add-ons available for Firefox under various categories, such as web development, changing the appearance of Firefox and utilities such as download managers.

Resources

What questions should have this tag?

Use this tag if your question is related to:

  • Code that is not working on Firefox which does work in other browsers
  • The inner workings of Firefox

Questions concerning Firefox add-on development should be tagged .

If your question is about using Firefox for browsing (i.e. as an end user) rather than the development of code for Firefox, you should ask your question on Super User instead.

Related tags

38740 questions
11
votes
3 answers

Javascript Hoisting in Chrome And Firefox

Running this in Chrome and Firefox gives different answers: (function() { if(true) { function f() { alert("yes"); }; } else { function f() { alert("no"); }; } f(); })(); In Chrome the…
BillR
  • 111
  • 4
11
votes
1 answer

Is the vertical bar (|) valid CSS, or Firefox-specific?

I noticed this rule in Firebug: *|*:link { color:#0000EE; } I'm not sure that I've ever seen the vertical bar (|) before. It's in the about:PreferenceStyleSheet so it may be Firefox-specific. What does it mean? Any link to a reference? I thought…
Keith Bentrup
  • 11,834
  • 7
  • 49
  • 56
11
votes
6 answers

How to make child window stay on top?

I am using window.open to open a child window from the parent window. I want the child window to stay on top so the user can refer to it while making an entry in the parent window. Can this be done? I'm using Firefox at the moment, but it would be a…
Andrew Fox
  • 794
  • 4
  • 13
  • 30
11
votes
2 answers

Why aren't Safari or Firefox able to process audio data from MediaElementSource?

Neither Safari or Firefox are able to process audio data from a MediaElementSource using the Web Audio API. var audioContext, audioProcess, audioSource, result = document.createElement('h3'), output = document.createElement('span'), …
idbehold
  • 16,833
  • 5
  • 47
  • 74
11
votes
3 answers

HTML drag event does not fire in firefox

I have a table on which I need to implement draggable header columns. I implemented it using Chrome as my browser, and everything worked fine. When I tested it in Firefox (17.0.1), I noticed that the drag event doesn't fire. dragstart does, though. …
Jared
  • 2,043
  • 5
  • 33
  • 63
11
votes
8 answers

How to explicitly specify a path to Firefox for Selenium?

I got Selenium IDE, followed this post, got to python test_default_server.py and it complains Firefox is not in my path: Please add the directory containing ''firefox.exe'' to your PATH environment variable, or explicitly specify a path to Firefox…
dfrankow
  • 20,191
  • 41
  • 152
  • 214
11
votes
2 answers

What does AddressFamily.FireFox refer to in .NET sockets?

In System.Net.Sockets.AddressFamily there are a number of obvious entries like InterNetwork, AppleTalk and Ipx. There's also one for "FireFox". I assume this has nothing to do with the "Firefox" browser since a. it's cased differently and b. why…
mhenry1384
  • 7,538
  • 5
  • 55
  • 74
11
votes
7 answers

Why does Firefox return 0 as the value of $(window).height()

It seems to me that Firefox ought to be better equipped to return the proper value when using $(window).height(). I am using jQuery 1.8.2. Is this a bug in that particular build? Every other browser I have tested returns an appropriate value when…
killtheliterate
  • 195
  • 1
  • 2
  • 9
11
votes
4 answers

Close windows that were not opened by script using javascript

I want my web application to run in a window which has no menubar, addressbar etc. I have a Default.html page and in this page I click a "Run Application" button which first opens my application in another window using window.open and then closes…
Mehmet Ataş
  • 11,081
  • 6
  • 51
  • 78
11
votes
7 answers

Ubuntu Firefox renders differently

Firefox on Ubuntu seems to render some HTML considerably differently compared to other browsers. In particular some fonts/styles on Ubuntu are becoming much larger and columns of text which rely on equal numbers of line breaks to keep them aligned…
nedned
  • 3,552
  • 8
  • 38
  • 41
11
votes
9 answers

View or Test README files *md in a browser prior to pushing to an online repository for rendering

Is there an application or way to render a README.md file in a browser on or offline? I am learning Markdown, and want instant feedback on some of my writing, as sometimes I forget a space or a blank line to achieve what I want, and it is…
chris Frisina
  • 19,086
  • 22
  • 87
  • 167
11
votes
1 answer

Using a data: encoded SVG as a CSS filter

Maybe someone can point an error in my test, but it seems that if I want to use a SVG filter in CSS encoding it as data: uri to avoid using an additional file, it fails if the data isn't encoded as base64. I've tested with Firefox Aurora, other…
AlfonsoML
  • 12,634
  • 2
  • 46
  • 53
11
votes
2 answers

Automating SSL client-side certificates in Firefox and Selenium testing

Is it possible to test client side SSL certificates with Selenium and any browser? E.g. Can you create a web driver and give dummy certificates for it? Or use a prepared Firefox profile?
Mikko Ohtamaa
  • 82,057
  • 50
  • 264
  • 435
11
votes
4 answers

How can a Firefox extension get its own version number programmatically?

How do I programatically get my own Firefox extension's version number with Javascript? My extension has an install.rdf file containing the version number similar to below. I want to extract the contents of the tag.
Mat
  • 82,161
  • 34
  • 89
  • 109
11
votes
2 answers

Text Stroke and Shadow CSS3 in Firefox

I was wondering if there was a way of adding a stroke and shadow to text, I can get it working in Chrome and Safari as webkit supports text-stroke and text-shadow. I can get the stroke to display in Firefox but that is using text-shadow and playing…
adamhuxtable
  • 269
  • 2
  • 7
  • 14
1 2 3
…
99 100