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Questions tagged [firefox-developer-edition]

Mozilla Firefox Developer Edition is a free and open source Gecko-based web browser. It is the first browser created specifically for developers.

firefox-developer-edition

Firefox Developer Edition

In celebration of the 10th anniversary of Firefox, Mozilla unveiled the Firefox Developer Edition, the first browser created specifically for developers.

Release cycle

Informative Q/A about Firefox Developer Edition

19 questions
54
votes
3 answers

What is the difference between Mozilla Firefox and Mozilla Firefox Developer Edition?

Mozilla recently launched a new web browser named Mozilla Firefox Developer Edition, ostensibly designed for web developers. So I installed it, but I can't find much of a difference between regular Firefox and the developer edition. Every tool which…
Saurabh Palatkar
  • 667
14
votes
2 answers

Why does Firefox developer edition use chrome:// urls to load scripts?

I just downloaded a copy of the new Firefox Developer Edition browser and started to fiddle around with the dev tools. I noticed that some of the links and scripts were loaded over chrome:// urls, which I thought were registered for Google…
Dan Prince
  • 331
4
votes
1 answer

What is the difference between Mozilla Firefox Beta and Firefox Developer Edition?

Currently, the Mozilla Firefox Beta channel and the Developer Edition channel both offer the same version of Firefox. What is the difference between the Beta version and the Developer Edition? Related, but different: What is the difference between…
Amazon Dies In Darkness
  • 9,990
3
votes
1 answer

Is it possible to edit the stylesheet of FireFox Developer Tools?

Is it possible to edit the visual layout of FireFox's developer tools? I'm talking about the tools themselves, not the webpage that the tools are inspecting. I want to narrow the large gap between the CSS property name and value: I've read that…
Ian Dunn
  • 322
3
votes
3 answers

Force Firefox to search for URL instead of opening

I am using Firefox Developer Edition 57 and have search bar integrated with address bar like Chrome has. I like this feature, but have problems when I want to search for something that is or looks like URL; for example today I wanted to search for…
Robert Kusznier
  • 359
2
votes
1 answer

Pages appearing in black on Firefox Developer Edition

I just installed the latest Firefox Developer's Edition (40.0a2) on one of my VMs, and most web pages are showing up on it (images included) as one big black page of nothing. (It works fine on my host system.) How do I fix this so that I can use the…
RobH
  • 554
2
votes
2 answers

In Windows 7, how can one right click an icon, and "open with" firefox Developer Edition

When I right click a .php file in Windows explorer, and hover over "Open with", it displays my regular Firefox, but not Firefox Developer Edition as an option. If I select "Choose default program...", click "Browse...", navigate to "Program Files…
nHaskins
  • 121
2
votes
1 answer

How to find unsaved passwords in Firefox (if possible)

I created an account for a website, but forgot to copy and save the password I used. I don't remember it because it's a bunch of random characters. I am now logged into the site, but I won't be able to log out and in again until I know my password…
GPWR
  • 575
1
vote
2 answers

How to run Firefox extension using Firefox Developer Edition and jpm?

I'm having some inconvenient with current release Firefox version and want to switch to Dev edition to developing my extension. I've tried the tutorial in this link but doesn't work. The example is for nightly build, which I guess is the folder…
Hp93
  • 183
1
vote
2 answers

Can I use e10s (multiprocess) in Firefox Dev Edition?

I am using Firefox Developer Edition because I need the browser toolbox features for my work creating add-ons. However, I really like speed boost from the new experimental multi-process feature (electrolysis/e10s). I've seen lots of articles…
Robin
  • 119
1
vote
1 answer

How to narrow down the list of CSS properties in autocomplete of Firefox Developer Tools or Firebug?

We write CSS properties a lot. That's why autocomplete comes in handy. But it's a little frustrating when I press v hoping for vertical-align and it comes out vector-effect or d hoping for display and it comes out direction etc. I would like to…
Mariusz Ignatowicz
  • 111
1
vote
1 answer

Firefox Developer cannot update automatically

I have Firefox Developer Edition 96.0b3 installed on my Debian Bullseye Stable system. Each time I open up Firefox, I am prompted to download the updated version of Firefox, because it "could not update automatically." It tells me that extracting…
GPWR
  • 575
1
vote
2 answers

How to create separate profiles for Firefox Developer Edition and Firefox?

I need to run Firefox Developer Edition (67.0b3.) and Firefox (regular version) simultaneously, but whenever I try to run the second instance I get this error message: Firefox is already running, but is not responding. To open a new window, you…
Robert Kusznier
  • 359
1
vote
1 answer

Not able to run 'Firefox Quantum 63.0 (64-bit)' and 'Firefox Developer Edition 64.0b4 (64-bit)' at the same time on Windows 10 Home Single Language OS

I've a laptop on which Windows 10 Home Single Language 64-bit Operating System is installed. I've installed the web browser 'Firefox Quantum 63.0 (64-bit)' on this laptop. Then, I installed the web browser 'Firefox Developer Edition 64.0b4 (64-bit)'…
JSLover
  • 175
1
vote
1 answer

Inspecting elements on localhost doesn't display element dimensions

I'm using both "Regular" Firefox as well as the Developer edition. At the moment I'm developing a website locally (using node.js/gulp) and am experiencing a weird... maybe a bug? Whenever I inspect elements in the Developer Edition through the…
Kablam
  • 147
1
2