# Firefox Developer Edition **URL:** \ **Category:** General Programming\ **Created:** [August 14, 2015, 1:34am UTC](https://metaruby.com/t/firefox-developer-edition/296 "2015-08-14T01:34:33Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![danielpclark](https://metaruby.com/user_avatar/metaruby.com/danielpclark/32/823_2.png) [@danielpclark](https://metaruby.com/u/danielpclark)\ **Post date:** [August 14, 2015, 1:34am UTC](https://metaruby.com/t/firefox-developer-edition/296/1 "2015-08-14T01:34:33Z")
Anyone use Firefox Developer Edition _Web Browser_ for development? It’s pretty cool. [Firefox Developer Edition](https://www.mozilla.org/en-US/firefox/developer/) ---
**Author:** ![RedFred7](https://metaruby.com/user_avatar/metaruby.com/redfred7/32/838_2.png) [@RedFred7](https://metaruby.com/u/RedFred7)\ **Post date:** [August 14, 2015, 8:17am UTC](https://metaruby.com/t/firefox-developer-edition/296/2 "2015-08-14T08:17:56Z")
I’ve used it occasionally, however I can’t unhook myself from using [RailsPanel](https://chrome.google.com/webstore/detail/railspanel/gjpfobpafnhjhbajcjgccbbdofdckggg) on Chrome, so whenever I develop in Rails I end up using Chrome. There’s nothing like RailsPanel on Firefox AFAIK, is there ?? ---
**Author:** ![AstonJ](https://metaruby.com/user_avatar/metaruby.com/astonj/32/8_2.png) [@AstonJ](https://metaruby.com/u/AstonJ)\ **Post date:** [August 14, 2015, 11:13am UTC](https://metaruby.com/t/firefox-developer-edition/296/3 "2015-08-14T11:13:53Z")
I’m not much of a FF user, but what does it offer that firebug doesn’t? ---
**Author:** ![danielpclark](https://metaruby.com/user_avatar/metaruby.com/danielpclark/32/823_2.png) [@danielpclark](https://metaruby.com/u/danielpclark)\ **Post date:** [August 14, 2015, 2:35pm UTC](https://metaruby.com/t/firefox-developer-edition/296/4 "2015-08-14T14:35:29Z")
> [@AstonJ](#): > > what does it offer that firebug doesn’t? Alternative browser emulation. WebIDE. Audio Editor. Performance Tools. Page Inspector. Along with the expected JavaScript Debugger etc. Once you learn all the different hotkeys Firefox itself is pretty amazing. ---
**Author:** ![danielpclark](https://metaruby.com/user_avatar/metaruby.com/danielpclark/32/823_2.png) [@danielpclark](https://metaruby.com/u/danielpclark)\ **Post date:** [August 14, 2015, 2:37pm UTC](https://metaruby.com/t/firefox-developer-edition/296/5 "2015-08-14T14:37:34Z")
Oh and I’ve been having HTML5 videos get stuck every few seconds while the audio continued in the normal Firefox Browser (I hear chrome has the same issue). When I switched/upgraded to the dev browser all the online videos play beautifully with no issues. ---
**Author:** ![Ohm](https://metaruby.com/user_avatar/metaruby.com/ohm/32/828_2.png) [@Ohm](https://metaruby.com/u/Ohm)\ **Post date:** [August 14, 2015, 9:29pm UTC](https://metaruby.com/t/firefox-developer-edition/296/6 "2015-08-14T21:29:50Z")
I want to switch away from Chrome, because I find it slow and memory consuming, so I tried FF / FFdev some time ago. They were both, unfortunately, more memory consuming and more sluggish than Chrome had ever been. 😭 I am contemplating a switch to Safari in some time, and I will use only Safari for a couple of weeks at least before I give my verdict on it. ---
**Author:** ![danielpclark](https://metaruby.com/user_avatar/metaruby.com/danielpclark/32/823_2.png) [@danielpclark](https://metaruby.com/u/danielpclark)\ **Post date:** [August 14, 2015, 10:28pm UTC](https://metaruby.com/t/firefox-developer-edition/296/7 "2015-08-14T22:28:43Z")
Of the web browsers Steve Gibson (of Security Now) recommends he says Firefox generally implements better security. As for me Chrome has been a memory hog but I’ve had no issue with Firefox. ---
**Author:** ![AstonJ](https://metaruby.com/user_avatar/metaruby.com/astonj/32/8_2.png) [@AstonJ](https://metaruby.com/u/AstonJ)\ **Post date:** [August 14, 2015, 11:22pm UTC](https://metaruby.com/t/firefox-developer-edition/296/8 "2015-08-14T23:22:34Z")
I use Safari for all my browsing, I use Chrome for dev but I don’t allow it internet access (localhost only). I only use FF for firebug occasionally. ---
**Author:** ![danielpclark](https://metaruby.com/user_avatar/metaruby.com/danielpclark/32/823_2.png) [@danielpclark](https://metaruby.com/u/danielpclark)\ **Post date:** [August 16, 2015, 5:28pm UTC](https://metaruby.com/t/firefox-developer-edition/296/9 "2015-08-16T17:28:34Z")
Firefox Developer Edition automatically downloads updates (just like Google Chrome). The last update they switched away from having new firefox processes per tab open to true multithreaded operation. Faster and far more memory efficient. Should solve the issue you had @Ohm ---
**Author:** ![PikachuEXE](https://metaruby.com/user_avatar/metaruby.com/pikachuexe/32/854_2.png) [@PikachuEXE](https://metaruby.com/u/PikachuEXE)\ **Post date:** [August 17, 2015, 1:30am UTC](https://metaruby.com/t/firefox-developer-edition/296/10 "2015-08-17T01:30:21Z")
Did Firefox ever use one process per tab? Or is it Firefox Developer Edition only? Anyway the one process per tab thing on Chrome does consume much memory. ---
**Author:** ![danielpclark](https://metaruby.com/user_avatar/metaruby.com/danielpclark/32/823_2.png) [@danielpclark](https://metaruby.com/u/danielpclark)\ **Post date:** [August 17, 2015, 1:48am UTC](https://metaruby.com/t/firefox-developer-edition/296/11 "2015-08-17T01:48:37Z")
> [@PikachuEXE](#): > > Did Firefox ever use one process per tab? Yes. It’s easy to see many Firefox processes open with each tab. It was also noted in their last update changelog about switching to multithreaded operation. ---
**Author:** ![PikachuEXE](https://metaruby.com/user_avatar/metaruby.com/pikachuexe/32/854_2.png) [@PikachuEXE](https://metaruby.com/u/PikachuEXE)\ **Post date:** [August 17, 2015, 1:53am UTC](https://metaruby.com/t/firefox-developer-edition/296/12 "2015-08-17T01:53:39Z")
If you are talking about Firefox Developer Edition then I am not sure. If you are talking about normal version or ESR then it hasn’t be multi-process (on Windows at least). ---
**Author:** ![danielpclark](https://metaruby.com/user_avatar/metaruby.com/danielpclark/32/823_2.png) [@danielpclark](https://metaruby.com/u/danielpclark)\ **Post date:** [August 17, 2015, 1:57am UTC](https://metaruby.com/t/firefox-developer-edition/296/13 "2015-08-17T01:57:35Z")
I’m referring to normal Firefox. And I use Linux. ---
**Author:** ![PikachuEXE](https://metaruby.com/user_avatar/metaruby.com/pikachuexe/32/854_2.png) [@PikachuEXE](https://metaruby.com/u/PikachuEXE)\ **Post date:** [August 17, 2015, 1:58am UTC](https://metaruby.com/t/firefox-developer-edition/296/14 "2015-08-17T01:58:44Z")
OK I have no idea then 😄 ---
**Author:** ![Ohm](https://metaruby.com/user_avatar/metaruby.com/ohm/32/828_2.png) [@Ohm](https://metaruby.com/u/Ohm)\ **Post date:** [August 17, 2015, 10:49am UTC](https://metaruby.com/t/firefox-developer-edition/296/15 "2015-08-17T10:49:58Z")
Ok. I’ll give FFdev another try, before heading over to Safari. ---
**Author:** ![Ohm](https://metaruby.com/user_avatar/metaruby.com/ohm/32/828_2.png) [@Ohm](https://metaruby.com/u/Ohm)\ **Post date:** [August 17, 2015, 11:27am UTC](https://metaruby.com/t/firefox-developer-edition/296/16 "2015-08-17T11:27:09Z")
Is there a way to hide the bookmarks bar when I’m not on `about:newtab`? I can’t seem to get Stylish to do it, either I can change the user interface or I can change the content of a given web page, I can’t seem to change the user interface on a given web page. 😿 ---
**Author:** ![Ohm](https://metaruby.com/user_avatar/metaruby.com/ohm/32/828_2.png) [@Ohm](https://metaruby.com/u/Ohm)\ **Post date:** [August 17, 2015, 6:00pm UTC](https://metaruby.com/t/firefox-developer-edition/296/17 "2015-08-17T18:00:34Z")
Hmm… couldn’t figure out how to do it only on `about:newtab`, but I found this Stylish snippet, that will hide the bookmarks bar until you hover the URL bar: ```css @namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul); #navigator-toolbox { position: relative; transition: all 0.3s ease 1s !important; } #PersonalToolbar { margin-top: -23px !important; transition: all 0.3s ease 1s !important; } #navigator-toolbox:hover { margin-bottom: -23px !important; transition-delay: 0s !important; } #navigator-toolbox:hover > #PersonalToolbar { margin-top: 0 !important; transition-delay: 0s !important; } ``` Sadly, you are not allow just to wrap this in ```css @-moz-document url("about:newtab") { ... } ``` ---
**Author:** ![danielpclark](https://metaruby.com/user_avatar/metaruby.com/danielpclark/32/823_2.png) [@danielpclark](https://metaruby.com/u/danielpclark)\ **Post date:** [August 17, 2015, 7:46pm UTC](https://metaruby.com/t/firefox-developer-edition/296/18 "2015-08-17T19:46:55Z")
I’ve not tried to do anything like that. But anything in the toolbar (bookmarks) should be removable with a right-click remove-from-toolbar. ---
**Author:** ![Ohm](https://metaruby.com/user_avatar/metaruby.com/ohm/32/828_2.png) [@Ohm](https://metaruby.com/u/Ohm)\ **Post date:** [August 17, 2015, 9:08pm UTC](https://metaruby.com/t/firefox-developer-edition/296/19 "2015-08-17T21:08:13Z")
Oh, but I’m not trying to remove anything, just hide the bookmark bar when I’m not on `about:newtab`. ---
**Author:** ![Ohm](https://metaruby.com/user_avatar/metaruby.com/ohm/32/828_2.png) [@Ohm](https://metaruby.com/u/Ohm)\ **Post date:** [August 18, 2015, 11:41am UTC](https://metaruby.com/t/firefox-developer-edition/296/20 "2015-08-18T11:41:50Z")
A weird limitation I’ve found in FFdev (possibly also FF) is that I can’t scroll horizontally without first scrolling vertically with my Magic Trackpad or the built-in one for that matter. Not a feature I use that often, but it seems kinda broken. [Next page](https://metaruby.com/t/firefox-developer-edition/296.md?page=2)