Firefox 4.0 will not install due to previous uninstall of Firefox

I can't believe this. I decided to up upgrade to Firefox 4.0 (I had Firefox 3.6.xx and IE 7 on my Windows XP system). The install says I needed to reboot because of a uninstall version of Firefox ("Your computer must be restarte to complete a previous uninstall for Firefox. Do you want to reboot now?"). I rebooted and started the installer again (I had saved it to my hard drive). Same message. Went to Control Panel and manually unistalled Firefox. Rebooted, same message. Deleted the installer, downloaded another version. Same message. Been fighting this for two weeks. Can not find an answer in the forum. Would love to install but I might just have to go to some other browser if this is not resolved soon.

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

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Got an Acer netbook which has linux operating system with Firefox 3.5 installed, the check for updates is greyed out, downloaded firefox 7 but will not install, we are constantly prompted by Firefox to update as 3.5 will no longer be supported

Basically acer netbook will not allow us to update Firefox from ver 3.5 to 7, check for updates box is greyed out, thanks for your help

Hi James,
Many thanks for your reply, the machine was bought from Currys the 3.6 download warns you it will only be supported for a short time, and recommends downloading ver 7, I am unfamiliar with the workings of Linux but the machine has been good, there must be a solution, no problem if we have to pay for the upgrade. Many thanks for your help,
Cheers, Steve

Lion will not install due an inability to set up a recovery system what can I do

Lion will not install due an inability to set up a recovery system what can I do

Have a read here http://support.apple.com/kb/HT4718
Stefan

I'm using Windows 7 I have downloaded Firefox 17 It will not load I go to uninstall and it will not uninstall. When try to go to a website I gt cant load xpcom

I'm using Windows 7 I downloaded Firefox 17 It will not load I go to uninstall and it will not uninstall. When I am using Thunderbird I try to go to a web site and I get the error code couldn't load xpcom.
How do I unistall this mess and start over again???

Please go to www.getfirefox.com and download Firefox 24 (don't use Firefox 17 it's not supported) and install it.

I downloaded the newest version of firefox but it will not install, it is giving me a message saying the directory name is invalid. Why and what can I do to fix.

The above message pops up when I try to install the new version of firefox. It will not let me install the new version. I do not know how to fix it. Please advise.

Try a custom install.
*https://support.mozilla.com/kb/Custom+installation+of+Firefox+on+Windows

When I download Firefox, my computer will not install and claims it is corrupt

When i download Firefox, my computer will not run the install and claims the file is corrupt.

Firefox versions 3.0 and higher require OSX 10.4 and higher:
[http://www.mozilla.com/firefox/system-requirements-v3.html]
[http://www.mozilla.com/firefox/system-requirements.html]
[ftp://ftp.mozilla.org/pub/mozilla.org/firefox/releases/2.0.0.20/mac/en-US/Firefox%202.0.0.20.dmg Firefox version 2.0.0.20] is the last ever version of Firefox for OSX 10.3.9 and lower.
However, I would think about finding/creating an unofficial build of Firefox 3 for older Mac (if you cannot get next version of Mac OSX). If it's possible. I don't know.
Tiger install DVDs are in short supply. Tiger is no longer available at the Apple Store but may be available for $129 by calling Apple Phone Sales @ 1-800-MY-APPLE (1-800-692-7753).
Tiger Requirements...
To use Mac OS X 10.4 Tiger, your Macintosh needs:
* A PowerPC G3, G4, or G5 processor
* Built-in FireWire
* At least 256 MB of RAM (I recommend 1GB minimum)
* DVD drive (DVD-ROM), Combo (CD-RW/DVD-ROM) or SuperDrive (DVD-R) for installation
* At least 3 GB of free disk space; 4 GB if you install the XCode 2 Developer Tools

Flash Player will not install - OSX 10.9.5 w/ Firefox 34.0.5

I know this question has been asked before, but since no one seems to have an answer for it I have no choice but to ask again.
I was having trouble posting scores on a gaming website. The game ran fine, and I could log in successfully, but my scores never showed on the player list. The help section of the site suggested uninstalling / reinstalling Flash Player. I was having trouble with Flash elsewhere so I thought I'd give it a try. The uninstall was successful but now Flash will not reinstall. Now instead of a malfunctioning Flash Player I have no Flash Player at all.
The install process goes as it should - the installer uploads to my desktop, I open it, I get the "Adobe Flash Player Installer" window, I double-click in the icon, I'm asked if I'm "sure I want to open it," I click "open," I enter my administrator password, then comes the problem. The next pop-up window has a black background and for about 1/2 second you can see the words "Retrieving Install" and a loading progress bar, then the words disappear and you're left looking at the blank black box. That's it.
I have Ghostery, Lightbeam, and HTTPS Everywhere add-ons on Firefox. I turned Ghostery off through this process.
Thanks in advance.

Well, good news. I solved it. And it's beyond bizarre that no one has suggested this.
Nested deep, deep, in the the help section is this:
Still having problems?
If you are still having trouble installing Adobe Flash Player, try downloading the installer directly from the following sites:
Flash Player for Safari and Firefox - NPAPI
Flash Player for Opera and Chromium-based browsers - PPAPI
Apparently Adobe doesn't have a copy of its own software that works? Ridiculous but true. You actually have to download it from your browser's website.
Adobe, you all seriously need to get your act together.

New Firefox 6.0 will not install, says "close Firefox" when not open

I'm trying to install Firefox 6.0. It will not run and keeps telling me to "close Firefox" even though I do not have it running. Does it see itself running? Is there a glitch?

Must be the "hang at exit" problem. 
#Stop the Firefox process:
#*[http://kb.mozillazine.org/Kill_application Mozillazine - Kill application]
#*Windows 7 users click [http://www.techrepublic.com/blog/window-on-windows/reap-the-benefits-of-windows-7s-task-manager/2576 here]
#Why Firefox may hang:
#*[http://support.mozilla.com/en-US/kb/Firefox+hangs Firefox hangs] (see Hang at exit)
#*[http://kb.mozillazine.org/Firefox_hangs Firefox hangs (Mozillazine)] (see Hang at exit and Closing Firefox properly)
#*[https://support.mozilla.com/en-US/kb/Firefox+is+already+running+but+is+not+responding Firefox is already running but is not responding]
#Use Firefox Safe Mode to find a problem with an Extension or Plugin:
#*Don't check anything when entering Safe Mode, just continue
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#*See:
#**[[Safe Mode]] and [http://kb.mozillazine.org/Safe_Mode Safe Mode (Mozillazine)]
#**[http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes Troubleshooting extensions and themes]
#**[http://support.mozilla.com/en-US/kb/Troubleshooting+plugins Troubleshooting plugins]
#**[http://support.mozilla.com/en-US/kb/Basic+Troubleshooting Basic Troubleshooting]
'''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/
*Shockwave Flash (Adobe Flash or Flash): [https://support.mozilla.com/en-US/kb/Managing%20the%20Flash%20plugin#w_updating-flash Updating Flash in Firefox]

Firefox 4.0 will not install. I have Mac OSX 10.4.11. Error message 10661.

I tried to install Firefox 4.0 and I got an error message 10661 and it said my system would not support it. I have Mac laptop with MAC OSX 10.4.11. Why won't it install using this operating system?

Firefox 4 doesn't run on a PowerPC Mac.
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* http://www.mozilla.com/firefox/4.0/system-requirements/
For Mac OS X 10.4.11 or Mac OS X 10.5.8 you can look at:
* http://www.floodgap.com/software/tenfourfox/
Firefox 3.6.x can be found here:
* http://www.mozilla.com/en-US/firefox/all-older.html

Itunes 7 will not install due to DEP (data execution prevention)

I am trying to install itunes 7 on a windows XP computer. It crashes each time I try to install immediately after clicking continue on the screen where it has 3 checkboxes (first puts icon on desktop, the second makes itunes the default audio player). I get an error that itunes installer has been shut down by windows by the DEP. It does this even if I exclude all the itunes on DEP. If I set DEP to only monitor windows processes, it still crashes at the same spot, it just doesnt bring up the dep window.
Any ideas?

Either way I get the same installer error twice then an itunes error that it could not install because it needs quicktime. (which I have).
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so let's try a careful standalone QT 7.1.3 install, to see if that goes in properly.
download and save a copy of the QT 7.1 standalone installer to your hard drive. (we'll run the install from there rather than online.) switch off antivirus and antispyware applications prior to the install.
Quicktime 7.1 Installers … get the one that doesn’t mention itunes
if you get an error message on the QT standalone reinstall, let us know what it says. include error message numbers if you're getting any.
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I tunes will not install due to quicktime

hello, I have an older pc and everytime I go to install Itunes, it goes through the whole process and at the very end says it cannot install because quicktime is not installed correctly and gives me some error message. I have never had itunes on this pc because of that. Is there a download that just has itunes and not the stupid quicktime which I don't give a crap about anyway?
Thanks
Cliff ([email protected])

You need the QuickTime. It provides all the audio and video playback capabilities for iTunes. (Conceptually, you don't go too far wrong thinking of iTunes as a gigantic QuickTime plugin.)
it goes through the whole process and at the very end says it cannot install because quicktime is not installed correctly and gives me some error message.
What's the precise text of that error message, Cliff? That would give us the best possible heads up on what is actually going wrong with the install.

Email links in Firefox 5.0 will not auto open my Outlook program. Firefox is set as my default browser

I am currently using Mozilla/5.0 Firefox/3.6.12. After having upgraded to this version I find that email links to my Outlook client will not automatically open a new email page pre-populated with the recipient's address. All other links on the page have worked correctly.

Many thanks jscher2000, problem solved.
Firefox 5.0
Windows 7 Pro.
Outlook 2010
Windows Live Mail 2011
In the article, only plugin.disable_full_page_plugin_for_types was present. After resetting then closing Firefox, normal service was resumed.
Links now opening from Outlook 2010 and Windows Live Mail 2011.

Trying to reload Canon MP620 printer but it will not install due to OS version. Tried to do custom download and it still will not print?

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Firefox 9.1 will not install properly on Windows Vista. Now won't open at all. Is there a fix? or how do I get firefox 8?

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'''''Users are overusing and misusing System Restore!'''''
System Restore:
#is a way of protecting the '''''Windows environment'''''
#'''''may help to avoid a complete reinstall of the Windows Operating System'''''.
# should '''''never be used in place of un-installing an application and trying to replace it with an earlier version of that same application'''''
#'''''should generally be the LAST step in diagnosing/reversing a problem with the operation of Windows, BEFORE performing a complete reinstall of the Windows Operating System'''''
See this and related articles on the Microsoft site: http://support.microsoft.com/kb/959063

Itunes will not install due to Invalid folder path

I have downloaded Itunes and every time I attempt to install it I get the message "The folder path "My Pictures" contains an invalid character". What can I do?

This should help,
This happens due to incorrect shell folder value type, or due to incorrect data in the registry. To resolve the problem, fix the My Pictures Shell folder paths in the registry accordingly. The default values are given in a tabular column in the following article. There is also a .REG fix available in the following page:
http://windowsxp.mvps.org/usershellfolders.htm
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Firefox 4.0 will not install due to previous uninstall of Firefox

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