I just updated to latest Firefox version and now it won't open at all. I even tried to go back to the previous version using Time Machine on my Mac and FF just won't open.

Firefox won't open after downloading latest version this morning.

Hi, JEvansIII.
Thank you for visiting Apple Support Communities.
Try resetting your System Management Controller or SMC then launch iTunes after processing these steps. If the issue persists, try downloading a fresh copy of iTunes by accessing the second link below.
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/en-us/HT201295
http://www.apple.com/itunes/
Cheers,
Jason H.

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Downloaded new version and now everything is screwed up!!! How do I get back to the previous version?

I downloaded the new version of Firefox and now nothing is working right on my computer!!! How do I get back to the previous version of Firefox because I am hating the new version!

Someone updated this extension. Check the comments, you will find the link there
https://addons.mozilla.org/en-US/firefox/addon/auto-shutdown/

Since I updated to mozilla 4 my internet continually freezes and I have to force it to quit. I tried taking it back to the previous version, but it is not the same anymore

I am using an earlier version now only because there were so many problems with version 4. I wish I had not upgraded in the first place as where I used to like it the most I now find it exasperating and go to Google or safari after having to quit 3 or 4 times

there is no way to go bacl to ios 6. have you tried restoring your phone?

I have a Mac running OS 10.5.8. I downloaded Firefox 4 and not the program will not open at all. I am also unable to download the previous version that was running fine. I'm using Safari to contact you.

I have a Mac G5 running OS 10.5.8. I downloaded Firefox 4 and now the program will not open at all. I get an error message that reads --
"You cannot open the application 'Firefox" because it is not supported on this architecture."
I am also unable to find a link to download the previous version (3.6) that was running fine. (I'm using Safari to contact you.)

Same proble here, although the Firefox system requirements says it is OK to have PowerPC G3 G4 or G5 ( I have G5 2GHZ)
My solution; very simply use timemachine to restore the previous Frefox 3.x
worked great in 3 mns

After upgrading, Firefox, I can no longer print wirelessly from my IPAD. How do I go back to the previous version?

Prior to updating Firefox, I had been able to print wirelessly from my IPad to my HP wireless printer.

The company that make the bioscanner for HP have abandoned it. For more details see https://support.mozilla.com/en-US/questions/799388

After the latest OS update, Safari locks up when trying to flip back to the previous page

After the latest OS update, Safari locks up when trying to flip back to the previous page using the two finger sweep.

Try these in order testing your system after each to see if it's back to normal:
1. a. Resetting your Mac's PRAM and NVRAM
    b. Intel-based Macs: Resetting the System Management Controller (SMC)
2. Restart the computer in Safe Mode, then restart again, normally. If this doesn't help, then:
     Boot to the Recovery HD: Restart the computer and after the chime press and hold down the
     COMMAND and R keys until the Utilities menu screen appears. Alternatively, restart the computer and
     after the chime press and hold down the OPTION key until the boot manager screen appears.
     Select the Recovery HD and click on the downward pointing arrow button.
3. Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the Utilities menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
     Reinstall the 10.9.2 update: OS X Mavericks 10.9.2 Update (Combo).
4. Reinstall Lion/Mountain Lion, Mavericks: Reboot from the Recovery HD. Select Reinstall Lion/Mountain Lion, Mavericks from the Utilities menu, and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Reinstall the 10.9.2 update: OS X Mavericks 10.9.2 Update (Combo).

I HATE Itunes 11 !! ..Please go back to the previous version !!!!!, I HATE Itunes 11 !! ..Please go back to the previous version !!!!!

I can't do stuff right on iTunes 11.
Each time I do a update in a song/movie/series , he updates the WHOLE library, and takes me back to letter A of artists in Music ..
and I have to scroll allllll the way down to where I was.
Every once in a while, he just mixes up all my Unwatched movies and series, and the episode I JUST DOWNLOADES appears as watched....
That a very crappy new software !! please go back to the previous version .....

Most likely the issue is something in your Firefox profile is not fully compatible with Firefox 4. You might find that the problem persists after reverting to Firefox 3.6, but you can try it.
Here's the process to roll back:
First, I recommend backing up your Firefox settings in case something goes wrong. See [https://support.mozilla.com/en-US/kb/Backing+up+your+information Backing up your information]. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)
Next, download and save Firefox 3.6 to your desktop for future installation. http://www.mozilla.com/firefox/all-older
Close Firefox 4.
You could install Firefox 3.6 over it (many have reported success) or you could uninstall Firefox first. If you uninstall, do not remove your personal data and settings, just the program.
Unless you have installed an incompatible add-on, Firefox 3.6 should pick up where you left off. If there are serious issues, please post back with details.
Note: I haven't actually tried this myself!

Recently, I updated to Firefox 4.0.1, and the new version disabled several of my programs, including my anti-virus. How can I go back to the previous version of Firefox?

I want to go back to the previous version of Firefox, because the new version (4.0.1 I think) that I downloaded disabled several of my programs, including my anti-virus program, because they were incompatible with the new version of Firefox. How do I get back to the previous version of Firefox and re-enable the disabled programs?

* [/questions/777886]
Some gestures have been removed in Firefox 4.
You can restore the zoom feature by changing the values of the related prefs on the about:config page.
browser.gesture.pinch.in -> cmd_fullZoomReduce
browser.gesture.pinch.in.shift -> cmd_fullZoomReset
browser.gesture.pinch.out -> cmd_fullZoomEnlarge
browser.gesture.pinch.out.shift -> cmd_fullZoomReset
browser.gesture.pinch.latched -> false
To open the about:config page, type about:config in the location (address) bar and press the "Enter" key, just like you type the url of a website to open a website. 
If you see a warning then you can confirm that you want to access that page. 
You can use the Filter bar at to top of the about:config page to locate a pref more easily.

Since I updated I can't open anything that comes in a pop upwindow i.e. pdf or mail window. How can I solve or go back to the previous version - it worked just fine.

Since I updated I can't open anything that comes in a pop upwindow i.e. pdf or mail window. How can I solve or go back to the previous version - it worked just fine.

I am not sure what your problem is, can you give more details.
One possibility is you may be in full screen mode, for details on fixing that see the [[menu bar is missing]] article.
If you are missing various toolbar items, see the [[back and forward or other toolbar items are missing]] article.
If your problem is something else please give more details.

Firefox alerted me that an update was available. I allowed firefox to install it. Firefox now has EVERY web site "Untrusted" and will not allow me to go there, not even to Microsoft's support page. How do I roll back to the previous version of Firefox?

EVERY SITE IS UNTRUSTED, including support.mozilla.com
The problem began as soon as I allowed Firefox to install the latest update.
I want to UNINSTALL the latest update and roll the product back to the previous version that was working.

Is the Date / Time set correctly on that PC?

I downloaded the new version of Firefox and it will not open certain of the addresses that I use to run my business. How can I delete this version and go back to the previous version? thank you

I would like to revert back to the previous version of Firefox. Please tell me how to do this

hello and thank you for your suggestion. I have tried it and, when trying to open a program which I previously was able to, still get the following message:
Remote XUL
This page uses an unsupported technology that is no longer available by default in Firefox.
Please contact the website owners to inform them of this problem.
Seems unbelievable that I previously had no problem and now I do. Have you any suggestions to overcome this? Do you think I can go back further in Firefox history to get a version that will make it possible to access this. Many thanks! Lynn

Firefox 25.0 disabled kaspersky virtual keyboard and safe money ect how do i change back to the previous version as fire fox tells you to late in the update

firefox 25.0 disabled kaspersky virtual keyboard and safe money ect how do i change back to the previous version as fire fox tells you to late in the update to back track

Hello Bretus,
Thank you for contacting Mozilla Support and I'm sorry this update isn't compatible with the extensions you're using.
The Kaspersky support forums mention that those extensions will be updated soon, so that they are compatible with FF25. In the meantime, we do not recommend that you downgrade your version of Firefox, but you can find instructions and download locations for previous versions here:
[[Install an older version of Firefox|Install an older version of Firefox]]
Please let us know if this solves your issue.
Cheers, Patrick

Ever since the most recent firefox update, every time I try to download anything firefox stops responding and will not do anything until I restart it. Can I revert back to a previous version, or is there a fix for it?

Every time I try to download anything firefox stops responding and will not do anything until I restart it. Can I revert back to a previous version, or is there a fix for it? When I restart firefox, then the download continues and all is well until I try to download something new (which I do quite often).

You may well find this article of interest and help in sorting out your problems: [[Installing a previous version of Firefox]] The article does contain a link for previous versions, but also points out other troubleshooting advice that may be more appropriate in some instances.
Another useful article is [[Basic Troubleshooting]]
I hope you sort out your problems either by downgrading or finding the cause of the problem.

Ever since I got the "new & improved" Firefox, I have had all kinds of problems the latest of which has left me without toolbars. How can I get back to the previous version?

# Question
Ever since I got the "new & improved" Firefox, I have had all kinds of problems the latest of which has left me without toolbars. How can I get back to the previous version? edit
IS THIS A GAME?
WHAT DETAILS DO YOU NEED?
THE COMPUTER HAS WORKED FINE
WITH THE OLD MOZILLA FIREFOX
FOR YEARS.
NO CHANGES HERE IN ANYTHING ELSE.

Click the Firefox button, go to Add-ons, then Plugins and disable the following: 
* Fun Web Products Plugin 
* My Web Search 
Both of these are adware/spyware and cause performance issues in Firefox.
Next, click the Extensions menu link (above Plugins where you are) and remove the "Ask Toolbar".
If the problem persists, please do the following: 
#Click '''Help '''| '''Restart with Add-ons disabled'''. 
#In the next menu which appears, checkmark: "'''Reset toolbars and Controls'''". 
#Finally, click the button called "'''Make changes and restart'''".
Just in case you weren't aware of it, you can right click the Back or Forward buttons to get a list of sites visited. If you'd like to see the return of the arrow on the Back button, install this add-on: https://addons.mozilla.org/en-US/firefox/addon/backforward-dropmarker/
Last but not least, some of your plugins are seriously out of date which exposes your system to exploits. Please visit the [http://www.mozilla.com/en-US/plugincheck/ Plugins Check] page and update where necessary.
See: http://www.adobe.com/support/security/bulletins/apsb11-08.html

How do I uninstall the latest version of iTunes and go back to the previous version?

That's my question: How do I uninstall the latest version of iTunes and go back to the previous version? I am running 10.6.8, I just uploaded this new "update" version of iTunes and I hate it. I want the old one back. How do I do that?

If you are on Mavericks (your profile says different) and using Pages 5.0 you should have Pages 09 in the Applications > iWork 09 folder.

I just updated to latest Firefox version and now it won't open at all. I even tried to go back to the previous version using Time Machine on my Mac and FF just won't open.

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