Can I run 2 versions of firefox? I need to run older version for one application

My operating system is mac 10.6.8 and I need to be able to run firefox 3.6.19 for one application & the latest version of firefox for other applications. Can I have 2 versions of firefox on my computer and choose which one to run depending on my application?

You can install the portable Firefox 3.6.19 version to access websites that do not work with Firefox 5+.
*http://www.freesmug.org/portableapps:firefox#toc1

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I need older versions of Firefox (4,5,6,7,8,9) for Mac.Any ideas on where I can download these from?

I need older versions of '''Firefox (4,5,6,7,8,9)''' for Mac.Any ideas on where I can download these from?
Also FF 8 for Windows

See http://kb.mozillazine.org/Go_back_to_an_old_version_of_Firefox

I've noticed that in the new version of Firefox that you cannot save multiple tabs at one time like the previous Firefox 3.6.or so and I wanted to know if I can find that feature again?

I've noticed that in the new version of Firefox that you cannot save multiple tabs at one time like the previous Firefox 3.6.or so and I wanted to know if I can find that feature again?
In the previous versions of Firefox when you went to you Bookmarks menu it gave you the options to either Bookmark This Page 'command' + 'D', Subscribe to this Page, Bookmark All Tabs 'up-arrow-key' + 'command' + 'D', and Organize Bookmarks 'up-arrow-key' + 'command' + 'B' however in the newest version of Firefox there is no Bookmark All Tabs so you can bookmark all the tabs that you have up in one window at a time. So I need to know if it is possible that the feature is now in a different place, is gone altogether, or if you can get that feature another way?
For me personally and my work I go through hundreds of web pages a day and save around half of those so it is imperative that I be able to bookmark more then one tab at a time because I can't be bothered to bookmark every single page separately and then go through hundreds of tabs in my Unsorted bookmarks in order to sort those bookmarks. It is simple inconvenient to sort every bookmark individually that is why the previous version of Firefox with the Bookmark All Tabs button was superior in its convenience.

Right click any tab and choose "Bookmark All Tabs".

How do I determine which version of Firefox I currently am running?

How do I determine which version of Firefox I am currently running on my laptop? I use Quickbooks Online and I keep getting a message that they will shortly discontinue supporting the version of Firefox that I have.

Help > About Firefox
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.18) Gecko/20110614 Firefox/3.6.18 ( ) = '''3.6.18''' - but that '''( )''' doesn't belong there and Quickbooks Online might be misreading your UserAgent as a result of that ( ) being there.
Try resetting your UserAgent string. 
[http://en.wikipedia.org/wiki/User_Agent]
type '''about:config''' in the URL bar and hit Enter 
''If you see the warning, you can confirm that you want to access that page.'' 
Filter = '''general.useragent.''' 
Right-click the preferences that are '''bold''', one line at a time, and select '''''Reset'''''. 
Then restart Firefox

Do I need to deinstall older versions of Firefox when I upgrate?

When I upgrate firefox, do I need to deinstall older versions?

You can download older versions of Mozilla Firefox from ftp://ftp.mozilla.org/pub/firefox/releases/
edit: replaced random unofficial download site link.

Trying to fill out the fafsa report for student entering college and they say I must use an earlier version of firefox, either 3.5 or 3.6, for vista, how can I download this?

Just need to download an earlier version of firefox, either 3.5 or 3.6 for vista operating system. How do I do this?

The fafsa.gov site does not currently support Firefox newer than version 3.6.x. That is their choice.
You can install Firefox Portable version to use only on that site and use your installed Firefox 5 for everything else. Firefox Portable installs in a separate folder on your hard drive so that it does not interfere with your Firefox 5.0.1 settings or personal information (bookmarks, passwords, etc.). You can also install Firefox Portable on a USB/thumb/pin drive.
*Firefox Portable general information: http://portableapps.com/apps/internet/firefox_portable
*Firefox Portable 3.6.19 download links: http://portableapps.com/apps/internet/firefox_portable/localization#legacy36
*Firefox Portable user forum: http://portableapps.com/forums/support/firefox_portable
'''If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.'''
Not related to your question, but...
You need to update some plug-ins:
*Plug-in check: https://www-trunk.stage.mozilla.com/en-US/plugincheck/
*Adobe PDF Plug-In For Firefox and Netscape: [https://support.mozilla.com/en-US/kb/Using%20the%20Adobe%20Reader%20plugin%20with%20Firefox#w_installing-and-updating-adobe-reader Installing/Updating Adobe Reader in Firefox]
*Next Generation Java Plug-in for Mozilla browsers: [https://support.mozilla.com/en-US/kb/Using%20the%20Java%20plugin%20with%20Firefox#w_installing-or-updating-java Installing or Updating Java in Firefox]

Pages is telling me that I need a newer version before I can open my document. I have the latest version and I am able to open older versions. Whats up?

Pages is telling me that I need a newer version before I can open my document. I have the latest version and I am able to open older versions. Whats up?

You have 2 versions of Pages on your Mac.
Pages 5 is in your Applications folder.
Pages '09/'08 is in your Applications/iWork folder.
You are alternately opening the wrong versions.
Pages '09/'08 can not open Pages 5 files and you will get the warning that you need a newer version.
Pages 5/5.01 can not open Pages 5.1 files and you will get the warning that you need a newer version.
Pages 5.1 sometimes can not open its own files and you will get the warning that you need a newer version.
Pages 5 can open Pages '09 files but may damage/alter them. It can not open Pages '08 files at all.
Once opened and saved in Pages 5 the Pages '09 files can not be opened in Pages '09.
Anything that is saved to iCloud is also converted to Pages 5 files.
All Pages files no matter what version and incompatibility have the same extension .pages.
Pages 5 files are now only compatible with themselves on a very restricted set of hardware, software and Operating Systems and will not transfer correctly on any other server software than iCloud.
Apple has not only managed to confuse all its users, but also itself.
Note: Apple has removed over 100 features from Pages 5 and added many bugs:
http://www.freeforum101.com/iworktipsntrick/viewforum.php?f=22&sid=3527487677f0c 6fa05b6297cd00f8eb9&mforum=iworktipsntrick
Archive/trash Pages 5, after exporting all Pages 5 files to Pages '09 or Word .docx, and rate/review it in the App Store, then get back to work.
Peter

When I try to open Firefox 3.6 (Mac) by clicking on the icon, I get this message: "Close Firefox: A copy of Firefox is already open. Only one copy of Firefox can be open at a time." I've removed older versions and restarted, but still get this message. Wh

I've just downloaded Firefox 3.6 (Mac). When I attempt to open, this message pops up: "Close Firefox: A copy of Firefox is already open. Only one copy of Firefox can be open at a time." I've removed older versions and restarted, but still get this message. What's going on?
== This happened ==
Every time Firefox opened
== after I downloaded the latest version. ==
== User Agent ==
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; en-us) AppleWebKit/531.22.7 (KHTML, like Gecko) Version/4.0.5 Safari/531.22.7

You might find your solution in [http://kb.mozillazine.org/Profile_in_use this article].

Are these suggestions speficic to the Windows version of Firefox? Because on my Mac version (31.0) there is no "options" in the Tool menu

Are these suggestions speficic to the Windows version of Firefox? Because on my Mac version (31.0) there is no "options" in the Tool menu.
I'm trying to figure out why Firefox has no spellcheck. I suspect it needs dictionaries installed, but it's a bit of a mystery. I had to reste FF as it kept crashing after I updated to V31.0

Yes Options is for Windows.
On Mac you use "Firefox > Preferences" or the Preferences button in the "3-bar" Firefox menu button drop-down list.
You can see which dictionary is selected if you right-click in a text area and open the Languages submenu.
At least one dictionary should be installed and have a check mark to indicate that it is selected.
*Open the "Add Dictionaries" link to install a dictionary if you do not have one.
*Make sure that [X] "Check Spelling" in the right-click context menu is check-marked.
You can enable or disable spell checking globally:
*Firefox > Preferences > Advanced : General: Browsing: "Check my spelling as I type"
You can look here for dictionaries:
*https://addons.mozilla.org/firefox/language-tools/
Were you able to stop the crashes?

HT201260 Tried to remove Symantec End Point software by dropping it in the trash and then emptied trash, of course now when I try and install newer version it tells me to uninstall the older version I can not access now. Any solutions?

Tried to remove Symantec End Point software by dropping it in the trash and then emptied trash, of course now when I try and install newer version it tells me to uninstall the older version I can not access now. Any solutions?

You usually have to use the program's uninstaller utility for such things as Symantec. Read this:
http://www.symantec.com/business/support/index?page=content&id=TECH132120
You may need to install it all over again, just to use its uninstaller.

I just put snow leopard 10.6.8 on my macbook pro and I was told that I could purchase Apature for photo management- now its says I need a different version.... is there an older version I could get? so frustrating.

I just put snow leopard 10.6.8 on my macbook pro and I was told that I could purchase Apature for photo management- now its says I need a different version.... is there an older version I could get? so frustrating.

The current version of Aperture requires 10.7.5 or later.
Upgrade Paths to Snow Leopard, Lion, and/or Mountain Lion
You can upgrade to Mountain Lion from Lion or directly from Snow Leopard. Mountain Lion can be downloaded from the Mac App Store for $19.99. To access the App Store you must have Snow Leopard 10.6.6 or later installed.
Upgrading to Snow Leopard
You can purchase Snow Leopard through the Apple Store: Mac OS X 10.6 Snow Leopard — Apple Store (U.S.). The price is $19.99 plus tax. You will be sent physical media by mail after placing your order.
After you install Snow Leopard you will have to download and install the Mac OS X 10.6.8 Update Combo v1.1 to update Snow Leopard to 10.6.8 and give you access to the App Store. Access to the App Store enables you to download Mountain Lion if your computer meets the requirements.
     Snow Leopard General Requirements
       1. Mac computer with an Intel processor
       2. 1GB of memory
       3. 5GB of available disk space
       4. DVD drive for installation
       5. Some features require a compatible Internet service provider;
           fees may apply.
       6. Some features require Apple’s iCloud services; fees and
           terms apply.
Upgrading to Lion
If your computer does not meet the requirements to install Mountain Lion, it may still meet the requirements to install Lion.
You can purchase Lion by contacting Customer Service: Contacting Apple for support and service — this includes international calling numbers. The cost is $19.99 (as it was before) plus tax. It's a download. You will get an email containing a redemption code that you then use at the Mac App Store to download Lion. Save a copy of that installer to your Downloads folder because the installer deletes itself at the end of the installation.
     Lion System Requirements
       1. Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7,
           or Xeon processor
       2. 2GB of memory
       3. OS X v10.6.6 or later (v10.6.8 recommended)
       4. 7GB of available space
       5. Some features require an Apple ID; terms apply.
Upgrading to Mountain Lion
To upgrade to Mountain Lion you must have Snow Leopard 10.6.8 or Lion installed. Purchase and download Mountain Lion from the App Store. Sign in using your Apple ID. Mountain Lion is $19.99 plus tax. The file is quite large, over 4 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
     OS X Mountain Lion — System Requirements
       Macs that can be upgraded to OS X Mountain Lion
         1. iMac (Mid 2007 or newer) — Model Identifier 7,1 or later
         2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) —
             Model Identifier 5,1 or later
         3. MacBook Pro (Mid/Late 2007 or newer) — Model Identifier 3,1 or later
         4. MacBook Air (Late 2008 or newer) — Model Identifier 2,1 or later
         5. Mac mini (Early 2009 or newer) — Model Identifier 3,1 or later
         6. Mac Pro (Early 2008 or newer) — Model Identifier 3,1 or later
         7. Xserve (Early 2009) — Model Identifier 3,1 or later
To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.
Are my applications compatible?
         See App Compatibility Table — RoaringApps.
     For a complete How-To introduction from Apple see Upgrade to OS X Mountain Lion.

When are you going to make GOOGLE TOOLBAR compatible with the latest version of firefox, i will not update to version 8 until its compatible

Question
When are you going to make GOOGLE TOOLBAR compatible with the latest version of firefox, i will not update to version 8 until its compatible

It's not going to happen. Google announced withdrawal of their Google Toolbar.
Using Google Toolbar features without toolbars - MozillaZine Knowledge Base
:http://kb.mozillazine.org/Using_Google_Toolbar_features_without_toolbars
The Google Toolbar will not be updated for Firefox 5 or later Firefox versions. ([http://googletoolbarhelp.blogspot.com/2011/07/update-on-google-toolbar-for-firefox.html reference]) Google finally decided that their [http://kb.mozillazine.org/Problematic_extensions problematic extension] is beyond repair for the little benefit added for Firefox users. Google as with other browsers is eliminating or making toolbars less accessible.
Consider the features that you are using and see if you can match up features from the list created by Google and by Firefox users.

HT1338 Have a macbook pro 2009 currently at version 10.5.8 need to install new version for i phone 5 but will not let me until I install MAC OS X Version 10.6 cant find this anywhere! Any ideas thanks

Have a macbook pro 2009 currently at version 10.5.8 need to install new version for i phone 5 but will not let me until I install MAC OS X Version 10.6 cant find this anywhere! Any ideas thanks

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Please help i have two ipods but i can use any as i can download the newer version of Itunes as i have the older version of Bonjour on my laptop I just cannot remove this!!!!!!!!!!!!

please help i have two ipods but i can use any as i can download the newer version of Itunes as i have the older version of Bonjour on my laptop
I just cannot remove this!!!!!!!!!!!!

i am no shure but go on Itunes store in shortcuts and try to find 'purchasse'
good luck

I downloaded reader 11.3, do i need to uninstall older versions ?

i downloaded reader 11.3 ,do i need to uninstall older versions ?

If you have Reader 10.x or 11.x installed, there is no need to uninstall. Older, or much older versions should be uninstalled before installing a much newer version.
[topic moved to Adobe Reader forum]

Can I run 2 versions of firefox? I need to run older version for one application

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