How do I downgrade Firefox to 4.0

I have to use an application for work which requires a downgrade to Firefox 4.0 - where do I find that?

Download Firefox 4.0 from ftp://ftp.mozilla.org/pub/firefox/releases/4.0.1/
edit: replaced random unofficial download site link.

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How do i downgrade firefox 5 to 4?

how do i downgrade firefox 5 to 4?

Hello,
If you wish to downgrade to Firefox 4.0.1, ensure that you have uninstalled Firefox 5.0 and any other version of Firefox you may have.
A download of 4.0.1 can be found [ftp://ftp.mozilla.org/pub/firefox/releases/4.0.1/win32/en-US/ here.]
edit: fixed link as there is no need for a random unofficial download site for any Firefox version.

Flickr doesn't work in this version - How can I Downgrade to a version that flikr works?

Many of the buttons on the Site Flickr don't work in this version - How do is Downgrade Firefox to an earlier version so I can use flickr. -
The buttons work fine with the same account on other browsers. They worked fine in the earlier version. I trashed Firefox and reinstalled it - I installed Firefox 4.0 beta - both had no effect.
The buttons that don't work are the "action" buttons - the "share" button - the left and right arrow buttons on either side of the row of 5 preview pictures.
I am running Firefox on a mac powerbook G4 - lots of memory,

hello, although it is meant mainly for enterprise use, for the moment you could still use the firefox 17esr release which will receive security updates for another one or two months: https://www.mozilla.org/en-US/firefox/organizations/all.html (scroll down into the second part of the page)
just as a general pointer: i wouldn't trust a bank very much when it forces you to use outdated and vulnerable browser for such a sensible task like online-banking...

I've just upgraded to latest version of Firefox 4 and my Mac is only OSX.10.4.11 and it won't open. How do I downgrade and get old Firefox back. Don't want to lose all my bookmarks. Why was I able to install in the first place. Very frustrated!!

've just upgraded to latest version of Firefox 4 and my Mac is only OSX.10.4.11 and now it won't open. How do I downgrade and get old Firefox back. Don't want to lose all my bookmarks. Why was I able to install in the first place. Very frustrated!!

You can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html
You can trash Firefox 4.0 then re-install Firefox 3.6, it will use your existing bookmarks, passwords etc
Mozilla are working to prevent Mac users with non-compatible systems from getting the notification about Firefox 4, and also not displaying the "Download Firefox 4" button on http://www.mozilla.com

How can I downgrade back to Firefox 3.6 because 4.0 won't run on my version of OSX?

I downloaded Firefox 4.0 & installed it on my MacBook running OSX.4.11 but when I tried to run it I got an error saying it was not compatible with my version of OSX.
So if I can't open Firefox I lose all my bookmarks....
How can I downgrade to the version I was running before I upgraded & replaced all the files with version 4? I think this was 3.6 as I do upgrade regularly.
Thanks!

You can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html
When you re-install Firefox 3.6 it will use your existing bookmarks, passwords and other user data.
Mozilla are working to prevent Mac users with non-compatible systems from getting the notification about Firefox 4, and also not displaying the "Download Firefox 4" button on http://www.mozilla.com

I just updated to the latest version of Firefox and now I can no longer download facebook videos with realplayer as I formerly could. How can I downgrade to my previous version of Firefox?

Question
I just updated to the latest version of Firefox and now I can no longer download facebook videos with realplayer as I formerly could. How can I downgrade to my previous version of Firefox?

Many thanks b Noir
This is a copy of ONEof the keys in the registry I changed as told by Apple support today. I also have changed others as instructed by GEAR software support to manually delete GEAR drivers (that I had installed but couldn't delete some of the others they mentioned from Windows system 32. Then some bright spark at work told me I need the Gear drivers so I downloaded the software and installed again.
Sorry, just this minute went to insert image and it is giving me a message saying this sort of content is not allowed?.
The most recent key I altered is in: HKey _local _machine. System\class - 4D36E965-E325-11CEBFC1-08002BE10318. Upper Filter data: Upper filter NTIDrvr SiRem GEARAspiWDN.
The GEARsoftware info about manually deleting GEAR drive is from:
http://www.gearsoftware.com/wiki/index.php?title=DRIVERS:_Windows_-_Updating%2C_ removing%2C_64_bit_versions%2C_etc
I hope you can help

Since upgrading to Firefox 4 I have had nothing but trouble. How do I downgrade and not lose my bookmarks? Or just downgrade without uninstalling Firefox?

It won't load properly, freezes, crashes unexpectedly, won't pull up PDF files from web sites and has issues running with hotmail. I've used Firefox for years and have never had this kind of problem. How do I downgrade to an older version? The new version 4 is obviously not ready to run and is riddled with problems.

I have to agree, fixing something that was working fine and replacing it with the new crap has led me to switch browsers.BIG FAIL MOZILLA
Why do people do this shit.
Turn off updating to keep your good working version or you will be forced to use the new version that is missing some well used features.

How can I set Firefox (in about:config?) to NEVER bother me with update notifications?

Welp, the question says it all. Or almost all of it. I DETEST the latest, MENU-LESS version of Firefox (and it DOESN'T help that, by standing on my head and spitting wooden nails in a particular direction, I CAN actually find everything contained in the old menus), and therefore I force-installed the previous version (28.0), but my problem is that I am still pestered with prompts that urge me to upgrade to version 29.0. I resent THE HELL OUT OF THAT! I resent ANYTHING NANNY-LIKE that is IN MY FACE!
So, I thought that by setting certain app.update parameters, I could be rid of that UPDATE SCOURGE - and in fact, it seems to have worked on my Linux-only desktop - but, alas, no, it is still there, still very much IN MY FACE on my dual-boot (openSUSE & Win7) desktop PC!
What, then, can I do to be rid of those update prompts? (Note that I am hoping that at some point in a not too distant future, Mozilla will offer, for each new version, a WUS and an I'M THE MAN variant, where the latter allows the user to steer the vehicle, as it were... if this never materializes, then at some point (when I deem Firefox 28.0 to be too unstable to use any longer), I will ditch Firefox in favor of an alternative that retains a semblance of the male's hobby-garage look (as oppose to HER slick, everything-hidden, kitchen-cabinet look!).
Thanks!
I am running openSUSE 13.1 in dual-boot iwith Window 7, and it is only on the SUSE interface that I am having the problem (on Win7, earlier versions allow me to tick a 'don't install anything, ever' box via preferences, rather than having to seek a solution in about:config). Right now I am using Firefox 28.0, having force-downgraded from the latest version.

The Link I gave you above won't tweak Firefox but rather give you a brief overview on what's new in Firefox 29.
The link below will show you how to customize Firefox 29 to look like previous versions of Firefox before 29.
*https://support.mozilla.org/en-US/kb/how-to-make-new-firefox-look-like-old-firefox
I also mentioned you can toggle some prefs in about:config to disable automatic updating
You can set these prefs in about:config to disable automatic updating:<br>
app.update.auto - false<br>
app.update.enabled - false<br>
app.update.silent - false<br>

How do I allow firefox 4 to go onto a page based on keywords in address bar

Firefox 3.6 allowed me to use the address bar as a more clever way of browsing. I am not sure why this feature was removed but it used google to figure out from my keywords what website I meant.
e.g gamespot uk would bring up google.co.uk
speedtest bbmax would bring up speedtest.bbmax.co.uk
If anybody knows how to fix this it would be great otherwise I may jut downgrade.

Firefox 3.6 uses the Google "browse by name" feature, you can set Firefox 4 to use this feature by changing a preference.
# Type '''about:config''' into the location bar and press enter
# Accept the warning message that appears, you will be taken to a list of preferences
# Locate the preference '''keyword.enabled''' and make sure it is set to '''true''', if it is not you can double-click on it to change its value.
# Locate the preference '''keyword.URL''', double-click on it and change its value to the link show below
http://www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=navclient&gfns=1&q=
For more details on this see http://kb.mozillazine.org/Location_Bar_search

How can I downgrade to a previous version?

How can I downgrade to a previous version. I upgraded to 2.3 and now my site is totally hosed because the fonts on the master page are changing size arbitrarily without me touching them. I've had to eliminate my site map on the bottom of my master page because I've spent over 20 hours trying to correct the issue and can't seem to get anywhere. Even completely recreating the page doesn't correct the problem.
I was going to simply change a few photos from an older backup copy of the html files, but when I opened them with the 2.3 version, it changed all of the font sized on those files too.
I need my site working properly, so, how can I downgrade to the previous version and get my site working again until the bug is fixed?
Help please!

http://support.mozilla.com/en-US/kb/Installing+a+previous+version+of+Firefox
http://www.mozilla.com/en-US/firefox/all-older.html

Tried to downgrade Firefox, now it crashes

Keep in mind I have dial up
I recently upgraded to the newest version of Firefox and everything was going nice until I realized it was going really slow. After an internet search on how to fix it, I decided to downgrade to version 2.0.0.1. (an installation file I still have on my computer) After installing this version Firefox crashed on startup, displaying a "firefox.exe has caused an error and must now close". So I did a system restore to the point right ebfore I downgraded. Firefo STILL crashes on startup (but this time gave me an option to report the crash, which I did.)
So I tried to go into Firefox safe mode and it wouldn't open at all (no crash message or anything.) Tried to open Firefox regularly and now won't open at all either.
How can I get Firefox working again?

Now it won't let me uninstall Fiefox..

After upgrading to version 6 my ArcGIS files become corrupted if I save them while I have FF open (sporadic occurence, but limited to FF being open). How can I downgrade to version 5?

I am using ArcGIS 10 and Firefox 6 on Windows XP.
After upgrading to version 6 my ArcGIS files become corrupted if I save them while I have FF open (sporadic occurence, but limited to FF being open). Any ideas of what could be causing this? I have also posted on the ArcGIS forum site for input from that side.
How can I downgrade to version 5? If that is the only option available.

Thanks for the reply. It doesn't have to process the php, it just has to show the HTML content. It did that just fine before the last upgrade but won't now.
I've seen that page you referenced: http://kb.mozillazine.org/File_types_and_download_actions.
It doesn't help. The things it says to look for aren't there for me, specifically:
browser.download.pluginOverrideTypes
plugin.disable_full_page_plugin_for_types
I followed the rest of the instructions but it didn't help.
I did get it to quit opening tabs, instead it prompts me what it should do with the file every time now. What it should do, and used to do, is open the php page and display the HTML content.
Any other ideas?

How do i use firefox as a web browser on my sony tablet s when i try it makes me choose google

i bought a Sony tablet S for my wife. She wants to access a program for work from home. I downloaded Mozilla firefox to the Sony, but when I open it, and go to type in a web address, it makes me choose Google as a search engine. How can I use Firefox on the Sony tablet? I did not see it in the list of supported devices. Please help. My wife is very frustrated, because she can only open her work program using Mozilla Firefox.

Hi Paulmozzi!
Here it is the supported devices list: http://www.mozilla.org/en-US/mobile/platforms/
However, because of the large number of Android devices (phones and tablets), not all new devices could be tested yet, but the list will continue to be updated.
I am not sure if I understand correctly your issue. When typing something in url bar, you will have at least 4 default search engines (Google, Wikipedia, Amazon, Twitter), so you can choose any of them. If you want to install more search engines, here it is a useful link for that: http://mycroft.mozdev.org/search-engines.html (open this link using Firefox Mobile on your tablet).
If you still need more help, please let us know. Any more details regarding your issue will be very useful.

I have a MacBook Pro and just added an airport express to listen to my iTunes on my stereo. How do I get Firefox to use my AX when I use Grooveshark or Pandora?

i have a MacBook Pro and just added an airport express to listen to my iTunes on my stereo. How do I get Firefox to use my AX when I use Grooveshark or Pandora?

If the purchases are all from the same account then you can share the content by authorizing each device.
If you have separate accounts then you have to be authorized to use the content purchased from another account.
MJ

I've down loaded adobe flash player but when I try to veiw video on firefox I'm still told that I need adobe flash player. How do I get firefox to see the flash player download?

I was trying to view a video I uploaded to facebook using firefox. The system told me to down load adobe flash player. I did but still get the message that I need to down load flash player. How do I get firefox to see the down loaded adobe flash player?

by installing from within Firefox, Internet Explorer has its own version (Active-X).
Make sure you are starting in the correct place for Flash
* http://www.adobe.com/software/flash/about/
If you want to read PDF files in you browser, you might also want
* http://get.adobe.com/reader/
After the download,
#bring up the download manager ("Ctrl+J") and start your installs. As soon as the install comes up,
#close Firefox with '''File > Exit''' or "Firefox" button > Exit. Give Firefox some time to close.
#If install does not proceed, '''terminate "firefox.exe"''' and '''"plugin-container.exe"''' from the "Processes" tab in the Windows Task Manager.
#* Windows 7 shortcut to the WTM is "Ctrl+Shift+Esc"
#* or on any Windows system from "Ctrl+Shift+Esc" then choose Windows Task Manager.
#*Make sure that "firefox.exe" is no longer running -- if it is still running then terminate it by selecting the use "End Process" button or from context menu, and do the same for "plugin-container.exe" if it is found there.
#proceed with the install.
'''Warning''': this is the Adobe site and they have chosen to to provide crapware along with their own product. Only install the product you were planning to install. Do not install additional products: including -- "Free! McAfee Security Scan Plus" or "Google Chrome". Installing Google Chrome on your own and installing it because it is offered on the Adobe site are two different things.
Find updates for your installed plugins at http://www.mozilla.com/plugincheck/ mozilla.com/plugincheck
-- best to use Adobe's site to really see if their plug-ins are up to date.
Please fix your caps lock or read what you type, do you think anybody could read my answer if I typed in all caps.
If the above fails to correct the problem, I would try uninstalling Adobe Flash from your system entirely first, from the control panel then "Programs and Features".

How do I downgrade Firefox to 4.0

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