Firefox extension which runs IE rendering engine

thought this might be of interest ..
Check out https://addons.mozilla.org/en-US/firefox/addon/1419
Its an extension to Firefox which allows you to change the rendering engine used within a tab. That means that if you have a page which only works with IE, just change the engine and away you go. Within the extension you can tell it to check Microsoft for updates to IE, so its always current.

Which extension are you using to open a website with IE ? 
Did you check the options to see if you can always use IE with that web page? 
I would assume that that will also work with a bookmark.
You have a corrupted user agent: Firefox/3.0.8;MEGAUPLOAD 1.0
You have or had an extension installed (MegaUpload toolbar) that has changed the user agent from Firefox/3.6.x to Firefox/3.0.x.
You can check the general.useragent prefs on the about:config page. 
You can open the about:config page via the location bar, just like you open a website. 
Filter: general.useragent 
If general.useragent prefs are bold (user set) then you can right-click that pref and choose Reset.
See [[Web sites or add-ons incorrectly report incompatible browser]] and [[Finding your Firefox version]]
See also http://kb.mozillazine.org/Resetting_your_useragent_string_to_its_compiled-in_default

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I want to create a Firefox Extension which will display a webpage. It will be like user should write a something in browser like "about:webpage" How can i load the WebPage in Firefox. The user should have a feel that a webpage is being loaded.

My extension on clicking something should open a webpage and that webpage should be able to communicate with the servers.
PS: I have javascript and CSS in that Page. If i cannot make then what changes do i need to make in the web page for that change. I am developing as HTML/Javascript does not allow cross domain queries. I hope that cross-domain queries are possible if i use extension.

You may find [https://addons.mozilla.org/en-US/firefox/developers this] a useful resource :)

Popup window "Firefox Safe Mode" came up."Firefox is now running in Safe Mode, which temporarily disables your custom settings, themes, and extensions". Then lists items 4 which some/all changes can be made permanent.

Pop up window: "Firefox Safe Mode". says: "Firefox is now running in Safe Mode, which temporarily disables your custom settings, themes an extensions". Then it shows list of items to select to make changes. Final choice press on "Continue in Safe Mode" or "quit". We do not want to make any changes to our settings. Pls. help what does this mean and what should we do. Thank you

On what kind of computer (Operating System) and with which Firefox version does this happen?
You seem to have posted this question with a iPad according to the system details list.
*http://kb.mozillazine.org/Safe_Mode
*http://support.mozilla.org/kb/Firefox+is+stuck+in+Safe+Mode

How to run Java from Firefox Extension using liveconnect?!

Hi, I'm trying to run a very simple java program from a Firefox extension I'm making but I've run into a brickwall and just can't get it to work. I'm a complete beginner in java and don't know much javascript so I've copied and pasted code from around the net to get where I am now. I'm sure I'm just making some stupid error at some step.
In order to work out what I'm misunderstanding/doing wrong I'd be really grateful if someone could show me how to get it to work using a very basic example:
Say I have a .java file taken from the sun pages:
* The HelloWorldApp class implements an application that
* simply displays "Hello World!" to the standard output.
class HelloWorldApp {
    public static void main(String[] args) {
        System.out.println("Hello World!"); //Display the string.
}So I stick it into a jar using:
jar.exe cvfe HelloWorldApp.jar HelloWorldApp.class HelloWorldApp.class
I then place it directly on my C: drive.
In the javascript of my firefox extension I have code copied and pasted from https://developer.mozilla.org/en/Java_in_Firefox_Extensions:
var urlClasz = java.lang.Class.forName("java.net.URL");
var urlArray = java.lang.reflect.Array.newInstance(urlClasz,1);
urlArray[0] = new java.net.URL('file:///C:/HelloWorldApp.jar');
var cl = java.net.URLClassLoader.newInstance(urlArray);
var aClass = java.lang.Class.forName("HelloWorldApp", true, cl);
var aStaticMethod = aClass.getMethod("HelloWorldApp", []);
var greeting = aStaticMethod.invoke(null, []);This seems to start java but then only gives me the error:
"Error: uncaught exception: Error calling method on NPObject! [plugin exception: java.lang.ClassNotFoundException: HelloWorldApp]."
I would be infinitely grateful if someone could show me the code I would use in this situation to run the HelloWorldApp. If I could get it working in this basic situation I'm sure I could work it out from there.
Thank you very, very much!!

By the way, I answered just because nobody did and I have some experience with using java from mozilla javascript.
But I never played with Firefox extensions.
No problem baftos, I understand you might not have all the answers but you've helped loads so far, so thanks a lot! I've found it very difficult to find good documentation on this for a beginner like me.
Adding public did it (although I thought that I'd tried that, oops) so thanks again for that. I may have a couple of other questions just in case you happen to know the answer!
I'd like to send some string arguments to the method I really want to run eg:
public class HelloWorldApp {
public static void sayHello(String[] args)
{code}After googling .forName and .getMethod to see how to pass parameters I've added some code:
{code:java}
var strClass = java.lang.Class.forName("java.lang.String");
var parameters = java.lang.reflect.Array.newInstance(strClass,2);
parameters[0] ="My string argument";
parameters[1] ="3"; // etc...
var argHolder = java.lang.reflect.Array.newInstance(strClass,1);
argHolder[0] = strClass;
var aClass = java.lang.Class.forName("HelloWorldApp", true, cl);
var aStaticMethod = aClass.getMethod("sayHello", argHolder);
var greeting = aStaticMethod.invoke(null, parameters);
{code}What I thought I was doing was creating a java array: argHolder and putting the string class/object thingy?! in it so that getMethod would look for a method called "sayHello" which took a string array as an argument... but apparently not!
This brings me back to square one with a cannot find method with these arguments error:
"Error: uncaught exception: Error calling method on NPObject! [plugin exception: java.lang.IllegalArgumentException: No method found matching name getMethod and arguments [java.lang.String, [Ljava.lang.String;]]."
You don't happen to know how to do this as well do you?!
Edited by: mzatanoskas on Feb 13, 2009 1:40 PM

I have a php module which runs fine in Firefox and all other browsers but not Safari. It always run twice - I see a small ? in upper right corner which is causing it to run twice but NO idea why? Help - thank you

I have a php module which runs fine in Firefox and all other browsers but not Safari. It always run twice - I see a small ? in upper right corner which is causing it to run twice but NO idea why? I read it MAY have something to do with am image it cannot load but I see them all loaded. Help - thank you

Could you share a link to the page?
Seeing it in context and in our browsers is much easier to debug.
If not, make sure to run the validator here The W3C Markup Validation Service and clear out any problems. HTML errors, especially structural ones, will cause all kinds of display problems in various browsers/versions/platforms.

I am trying to download Firefox on my laptop which runs Vista. I am getting the following error message: Your Firefox profile can't be loaded, it may be missing or innaccessible." Please help.

I am trying to download Firefox on my laptop which runs Vista. I am getting the following error message: Your Firefox profile can't be loaded, it may be missing or innaccessible." Please help.

See:
* http://kb.mozillazine.org/Recovering_a_missing_profile
* http://kb.mozillazine.org/Profile_in_use
* https://support.mozilla.com/kb/Firefox+is+already+running+but+is+not+responding

I cannot get the Firefox setup wizard to run on my laptop, which runs Windows XP.

I have a Compaq Presario which runs Windows XP. I have 1.12 GB of RAM, a 1.59 GHz processor, and more than 30 GB of space on my hard drive. I can download Firefox, but I can't get the setup wizard to run. After I get it downloaded and try to run the wizard, my computer hangs up. I have tried both saving it and running it right off the bat. Neither way works. I need to have Firefox on my machine, so any way I could get help with this problem would be great. Thanks.

It is possible that your anti-virus software is corrupting the downloaded files or otherwise interfering with installing Firefox.
You can try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes installing work.

Where do I look on my computer to see which version of Firefox I am running?

I am not sure which version of Firefox I am running on my computer. How can I find out? I am using a desktop computer with windows.

In the help menu select "About Mozilla Firefox"
You are using an old version of Firefox (3.6.3)

Digital persona(fingerprint reader) extension is incompatable with firefox 4.0b7 and many more extension which is working in firefox 3.6 is not compatable with this version

Current version of firefox shows "Digital persona(fingerprint reader) extension is incompatable with firefox 4.0b7" and many more extension which is working in firefox 3.6 also not compatable with this version what should we do because this extensions are very useful for me in my laptop

I got this reply from DigitalPersona:
"DigitalPersona made the decision late last Spring, to discontinue the Personal products. There will be no further revisions."

When I attempt to open Firefox a window appears which says Firefox is already running, and I must either close the window (which isn't open) or re-start the computer to get Firefox to open.

The system operates normally for a while and then unexpectedly whenever it wants to, I get this message, even though Firefox is not open.
I have to continually re-start the computer to make Firefox operational again.

See [[Firefox is already running but is not responding]], in your case it sounds like Firefox is not closing properly.

Firefox will not open or stay open especially when I'm first getting on it for the day. It will sometimes say that firefox is already running and that I have to close it which I don't understand.

Right now I'm staying connected but when I tried it at 2:00 Firefox would not stay connected. It would keep saying not responding. Also sometimes if I would go to fast it would just jam up. I could be connected and then go to my email and it would say lost connection. It just kept changing as though I was getting more that one connection. Hopefully you can help me.

Basically it means firefox didnt Shut down properly and if you close firefox and you try to open it again and you get the message firefox is already running then in windows right click on the taskbar and press on task manager and then once task manager is open press on processes and look for firefox.exe and then where it says End process click that and it will close firefox properly ok and then you can open firefox up again properly ok and for mac its a differnat way ok

Where can I get firefox os for my mobile(Samsung sgh s730m) which runs on android 4.0.4? is it possible to change from android to firefox?

Does firefox os can run perfectly in my android device,Chipset and Hardware Samsung Galaxy Discover SGH-S730M
CPU / Processor Qualcomm Snapdragon MSM7225A / ARM Cortex-A5
Processor Clock / Cores 800Mhz 32bits Single-Core
RAM Memory 512MB
GPU Graphical Controller Qualcomm Adreno 200
Internal Storage 4GB (2.68GB user available)
External Storage Until 32GB microSD, microSDHC

Yeah, Its Possible.

In firefox I cannot use the search engine, like to order a product or search it seems to be in the upper half of screen

in firefox. Icannot use the search engine in the screen and I cannot order anything as well. I get the cursor arrow insted of the I symbole.. I even reloaded firefox too. Can some one help?

'''Try the Firefox SafeMode''' to see how it works there. 
''A troubleshooting mode, which disables most Add-ons.'' 
[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode#w_safe-mode-window_2 Troubleshoot Firefox issues using Firefox SafeMode]
When in Safe Mode... 
* The status of plug-ins is not affected.
* Custom preferences are not affected.
* All extensions are disabled.
* The default theme is used, without a persona.
* userChrome.css and userContent.css are ignored.
* The default toolbar layout is used.
* The JIT Javascript compiler is disabled.
* Hardware acceleration is disabled.
* You can open the Firefox 15.0+ SafeMode by holding the '''Shft''' key when you use the Firefox desktop or Start menu shortcut.
* Or use the Help menu item, click on '''Restart with Add-ons Disabled...''' while Firefox is running.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before using the Firefox shortcut (without the Shft key) to open it again.''
'''''If it is good in the Firefox SafeMode''''', your problem is probably caused by an extension, and you need to figure out which one. 
http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes
''When you figure out what is causing that, please let us know. It might help other user's who have that problem.''

Firefox won't run once I download it

I went on the Mozilla website to download Firefox. I clicked "Run" on the popup box and it downloaded. I then clicked "Run" again to begin installation, and nothing happened. The little box went away, and there's no Mozilla files on my computer. I tried this twice and the same thing happed both times.

Please do the following. 
#Using Internet Explorer 7 or 8, click this link: [http://www.mozilla.com/products/download.html?product=firefox-5.0.1&os=win&lang=en-US Download Firefox 5.0.1] 
#When you see the popup, click "'''Save'''" (''do not click "Run"'') and save the file to your desktop. 
#After the download completes, click '''Tools''', then '''Internet Options''' in Internet Explorer. 
#Click the "Programs" tab and remove the checkmark from "'''Tell me if Internet Explorer is not the default browser'''". 
#Click Apply/OK to close the dialog box. 
#Double click the file you downloaded called '''firefox 5.0.1.exe''' to start the installation. 
#After it installs, Firefox creates a desktop shortcut so click that to launch it. 
#Click the orange Firefox button top left and go to '''Options '''| '''Options '''and then click the '''Advanced '''button in the menu which appears. That's the one on the far right at the top. 
#In the General tab, checkmark the following: "'''Always check to see if Firefox is the default browser on startup'''" and then click the "'''Check Now'''" button. 
#Click OK to close the menu. 
You are now ready to go.
First port of call will be to add a few extensions which you'll find here: https://addons.mozilla.org/en-US/firefox/?browse=featured
I suggest the following: 
* '''Adblock Plus''' to block ads: https://addons.mozilla.org/en-US/firefox/addon/adblock-plus/ 
* '''Status 4-Evar''' to restore the status bar: https://addons.mozilla.org/en-US/firefox/addon/status-4-evar/ 
* '''Context Search''' to allow you to use the right click menu to search with: https://addons.mozilla.org/en-US/firefox/addon/context-search/ 
* '''Add To Search Bar''' to add to existing search engines: https://addons.mozilla.org/en-US/firefox/addon/add-to-search-bar/ 
I'm sure you'll find many more yourself. ;)

When I start Firefox it gives me a box that says Firefox is now running in "safemode".... how do I get this to go away??

When I go to start FireFox a box pops up that says "Firefox is now running in Safe Mode, which temporarily disables your custom settings, themes, and extensions." Than it gives me options to check mark.... like.... Disables all add-ons, reset toolbars, and controls, delete all bookmarks except for backups, reset all user preferences to firefox defaults, and restore default search engines.
How do I make this box go away?

Nope I haven't put it in safe mode... no idea whats going on. I looked at the safe mode instructions and how to take it off safe mode and the article about how if it gets stuck. I did all of that and it's still stuck:-( I am thinking about uninstalling firefox and reinstalling it.

Firefox extension which runs IE rendering engine

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