How can I prevent Firefox from checking whether Adobe Flash is up to date?

I just updated Flash a week ago and already Firefox is prompting me to replace the update with the message "Firefox has prevented the outdated plugin Adobe Flash from running on" (etc.) How can I prevent Firefox (I'm using version 35.0.1) from running this check forever?

"Add-ons" is a mis-leading term, regarding what appears in the Add-ons Manager tab. "Addons" includes Extensions, Search Engines, Themes (Appearance), User Scripts, Styles, and Services - all of which the "Updates" can be controlled by Firefox preferences. "Plugins" are shown in the AOM too, but unlike the others, Firefox has no control over updates for Plugins. As James mentioned, Plugins aren't installed within Firefox as the other categories of "Add-Ons" are - and updates are controlled by the application that installed the Plugin that Firefox uses from each application's own set of folders or wherever in Windows files the Plugin is placed by the installer.
IMO, the biggest problem with Flash is that it is set by default to only look for an update once a month. So when Adobe updates Flash multiple times a month (3 "updates" in January alone) the Flash updater can'r catch each update as it occurs, or even within an acceptable "window of time". A user might "fall behind" as many as 3 new version releases quite easily.
As far as clicking to "Allow" each video when you're behind a version or two with Flash, at least Mozilla does a "soft block" and permits you to "Allow" - a "hard block" would make it impossible to use Flash at all. And "yes". Mozilla ''can do" a "hard block" when necessary.
In conclusion, Flash is a dying technology, which deserves to be buried. It is too "exploitable" by the "bad guys". All the recent "updates" are for security patches for fixing "holes" in Flash and stability fixes to an old application that "has seen better days" (like 10 years ago).
HTML5 Video looks like the future. Use it where you can, like at YouTube which gives you a choice for many videos they host - but you you need to enable that feature in Google preferences or all you're liable got get is Flash videos. With other websites, their users need to tell them that they want HTML5 videos only.

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How can I prevent Firefox from re-installing test pilot?

I had removed the test pilot extension and its feedback button in Firefox 4.0b9. I let Firefox upgrade itself to 4.0b10 and didn't notice that silently re-installed it.
I was typing in another application when suddenly that window was minimized and the focus shifted to a Firefox "new test pilot study" window that popped up. Even if I had given permission for that software to be installed, that is rude.
I am not willing to trust that if I disable this logging software that it will stay disabled the next time I upgrade. I will remove test pilot again. '''How can I prevent Firefox from re-installing it?'''
One way might be to set extensions.rdf read-only. However, I do not wish to lose the ability to install add-ons, I merely do not want anybody (including Mozilla) to install an add-on without my permission.
https://bugzilla.mozilla.org/show_bug.cgi?id=519357 doesn't seem to address this problem as test pilot is a known component. Its not a plug-in so I can't modify the plugin scanning settings to prevent it from being loaded. Is there some way I can reliably supplement http://www.mozilla.com/en-US/blocklist/ with a local block list file? If so, would I have to update that whenever a new version of test Pilot is released?
http://support.mozilla.com/en-US/kb/Add-ons%20blocklist

I'm not sure what you mean by "re-directs e-mails." Are the recipient addresses changing between the time you address the message and the time it is sent?
If you could provide more information I think that would help in tracking this down.
When you use Firefox to work with your webmail site, whether Yahoo! or Gmail or another, the mechanics of sending the mail are handled by the site itself. So if there is a problem with how messages are addressed, then you may need to check your Yahoo! mail settings.

How can I prevent Firefox from cleaning my clipboard at exit (exit or closing firefox) ?

How can I prevent Firefox from cleaning my clipboard at exit (exit or closing firefox) ?
I am using FF 9.0.1 and the problem start from FF 5.0

You can't prevent that. 
If you've placed data on the clipboard in Firefox then you need to paste that data in the other program, if that is your intention, before closing Firefox.

How can I prevent Firefox from being on top of Thunderbird?

For example, Tbird is open and on top of Firefox, which is open. I click to Forward a message, then address it. Then click to Send. The Forward screen closes and instead of going back to the Tbird messages screen, it goes back to Firefox. How can I stop this from happening?

There has been a change in where Firefox searches for plugins and the plugins folder in the Firefox program folder is no longer scanned for plugins, so Firefox won't find them anymore if they are installed in the plugins folder instead of the "browser\plugins" folder that Firefox now scans.
You can set the plugins.load_appdir_plugins pref to true on the about:config page to make Firefox scan the "<install>/plugins/" directory for plugins like the WMP plugin (np-mswmp.dll).
You can alternatively move plugins from "<install directory>\plugins\" to "<install directory>\browser\plugins\" (create this folder when missing) to make Firefox find them again.
*http://www.ghacks.net/2013/05/15/why-you-may-have-lost-access-to-plugins-or-extensions-in-firefox-21/
*http://mike.kaply.com/2013/04/24/major-changes-coming-in-firefox-21/
*https://support.mozilla.org/kb/windows-media-or-other-plugins-stopped-working

How can I prevent Firefox from automatically updating?

Hello,
I am trying to prevent Firefox 28 from automatically updating to Firefox 29 (on OSX 10.7.5).
I have the option "Never check for updates" checked under 'Update' in the 'Advanced' Preferences. I have "Automatically update Search Engines" unchecked. I have uninstalled Firefox 29 completely using two separate uninstall clean-up kits and emptied the trash before re-installing Firefox 28... Yet every time I finally re-arrange, customize and re-sync Firefox 28 back to the way I like it, I restart my Mac and Firefox 29 rears it's over-drawn, bubbly, space-wasting, UN-SYNCED, ridiculous tabs on top nonsense user interface.
I've tried to work with Firefox 29 but the new SYNC simply does not work and that's a deal breaker. I need the changes I make on my mac to be reflected across the other two systems on my desk (one WinXP, one Win7) and vice versa. When I try to sync on FF29 it takes me to a page to log in and then refuses to recognize my email and password (which I have thoroughly confirmed on my other systems as correct).
Can you please help me prevent Firefox 28 from automatically updating to Firefox 29?

Thank you for your comments, cor-el.
Yes, I know about Classic Theme Restorer, but the point is what gives Mozilla the right to update my Firefox when I already have quite clearly set every option to prevent automatic updates?
I have set:
app.update.auto - false
app.update.enabled - false
app.update.silent - false
So which secret magic setting has Mozilla used to bypass all these settings and what gives them the right to do it?
Also, moving the tabs bar and menu bar and whatever else has been moved in Firefox 29 is a THEME change. It is not a security fix. Mozilla should not be in the business of changing the theme or look of Firefox. It is not their business how I want my Firefox to look.
Regarding "tabs", I have mine down the left side, so this tweaking of the tab bar position is pointless anyway.
To Mozilla, Just for absolute clarification, there is no way you can possibly justify forcing an update on users computers without their explicit acceptance.
What if someone found out how Mozilla forced the update? They could then force an update that is NOT a genuine Firefox release and do untold damage to peoples' computers.
So now I am forced to delete Firefox from my startup script and start it manually just in case their is another forced update that I can stop.
To cor-el, thank you for your post.
To Mozilla, you have lost the plot.

How can I prevent Firefox from automatically filling in my passward in every site I visit? I have NO security now when others use computer.

Everytime anyone on this computer goes to my AOL or YAHOO email, Firefox automatically fills in my password and whoever is using my computer can read my email or check bank balances or anything else. I have just started using Firefox and now have NO security. Can anyone help me change the security settings?

Also, make sure you have a password on your user account - if you share a computer without separate Windows accounts, they have access to all your information regardless of whether you stay logged in or not, and regardless of whether passwords are saved or not. Make everyone else use the guest account or their own limited account.

How can I prevent firefox from displaying an overall black page after I request a topic search in the google/firefox search box? Not able to see results

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When this happens, has the address bar changed to a google.com address or is it still blank?
Some graphical glitches are caused by an incompatibility between Firefox and your graphics card drivers. The standard workaround for bypassing this is to disable Firefox from using hardware acceleration. You can make that change here:
"3-bar" menu button (or Tools menu) > Options > Advanced
On the "General" mini-tab, uncheck the box for "Use hardware acceleration when available"
That will take effect the next time you exit Firefox and start it up again.
More generally:
When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.
(1) Bypass Firefox's Cache
Use Ctrl+Shift+r to reload the page fresh from the server.
Alternately, you also can clear Firefox's cache completely using:
"3-bar" menu button (or Tools menu) > Options > Advanced
On the Network mini-tab > Cached Web Content : "Clear Now"
If you have a large hard drive, this might take a few minutes.
(2) Remove the site's cookies (save any pending work first). While viewing a page on the site, try either:
* right-click and choose View Page Info > Security > "View Cookies"
* (menu bar) Tools > Page Info > Security > "View Cookies"
In the dialog that opens, you can remove the site's cookies individually.
Then try reloading the page. Does that help?

How can I prevent Firefox from closing when it crashes?

So, I'm using a Windows 8 computer, & when it crashes, it closes altogether & it's really annoying having to reload my session, but when I was using a Windows 7 computer, Firefox hardly ever closed altogether when it crashed- all it did was freeze. Is there some way to only have it freeze instead of closing altogether? I hope you understand what I'm saying. Thanks.

If only, if only! :)
No, there isn't a way you can choose what Firefox does when it crashes. It crashes for a reason. But we can see what's causing those crashes.
Can you give me your crash reports?
#Enter ''about:crashes'' in the Firefox address bar and press Enter. A Submitted Crash Reports list will appear, similar to the one shown below.
#Copy the '''5''' most recent Report IDs that start with '''bp-''' and paste them into your response here.
Your System Details looks very light/empty. Can you start by giving us the troubleshooting information from the Firefox installation that's having problems. This is an essential step in troubleshooting. 
*Click the Firefox button at the top left, then click the ''Help'' menu and select ''Troubleshooting Information'' from the sub-menu. If you don't have a Firefox button, click the Help menu at the top and select ''Troubleshooting Information'' from the menu.
Now, a new tab containing your troubleshooting information should open.
*At the top of the page, you should see a button that says "Copy text to clipboard". Click it.
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How can I stop firefox from checking add-ons and displaying the What's new page each time I launch it

Since upgrading to the latest version, I have viewed read and interacted with everything on the What's new page. I have done this a number of times but the page is still opened each time I launch Firefox. In addition it shows my homepage in a second tab.
Prior to opening Firefox it checks for add-ons.

hello Michells, this will likely be caused by the user.js file in your profile folder.
go to the firefox ''menu ≡ > help ? > troubleshooting information'', click on ''profile folder/show folder'' and close all firefox windows afterwards. a windows explorer window should open up - in there delete the file named '''user.js''' and restart the browser afterwards.
[[How to fix preferences that won't save]]

How can I prevent Firefox from ever automatically updating without my say so. It just did, and DESTROYED all bookmarks. I'm BUMMED about that

There were NO .json files saved anywhere in the 'puter. I need to be reliably OPTED OUT of automatic updating unless the auto destruction forces warn me aforehand to backup my cookies, bookmarks, email and etc. When I now click on Help, I get an automatic start of "downloading Firefox 3.6.6" WHAT KIND OF HELP IS THAT?

Your bookmarkbackups folder is your Profile folder which is normally a folder hidden by Windows.
See:
https://support.mozilla.com/en-US/kb/Lost+Bookmarks#Restoring_bookmark_backups
http://support.mozilla.com/en-US/kb/Profiles#How_to_find_your_profile
http://kb.mozillazine.org/Show_hidden_files_and_folders
Everything indicates that you have Firefox 3.6.3; the current version is Firefox 3.6.6. To check your version at any time, click Help > About Mozilla Firefox.
You can manually check for updates by clicking Help > Check for Updates.
To change your options on Automatic Updates for Firefox: Tools > Options > Advanced > Update
See: http://support.mozilla.com/en-US/kb/Options+window+-+Advanced+panel#Update_tab
I use the "Ask me what I want to do" option. It will still check, but ask you if you want to update '''IF''' you leave the check mark next to Firefox. Un-check Firefox and you run the risk of missing important security updates. With Firefox checked, it should check for updates, by default, once per day.
'''''Other Issues''''': ~~red:You have installed plug-ins with known security issues. You should update them immediately.~~
'''Update Java''': your ver. 1.6.0.17; current ver. 1.6.0.20 (important security update 04-15-2010)
(Firefox 3.6 and above requires Java 1.6.0.10 and above; see: http://support.mozilla.com/en-US/kb/Java-related+issues#Java_does_not_work_in_Firefox_3_6 )
''(Windows users: Do the manual update; very easy.)''
~~red:Check your version here~~: http://www.mozilla.com/en-US/plugincheck/
See: '''[http://support.mozilla.com/en-US/kb/Using+the+Java+plugin+with+Firefox#Updates Updating Java]'''
Do the update with Firefox closed.
'''Update Shockwave for Director''': your ver. 10.1 (~~red:very old~~); current ver. 11.5.7.609 (important security update released 2010-05-11; see http://www.adobe.com/support/security/bulletins/apsb10-12.html)
NOTE: this is not the same as Shockwave Flash; this installs the Shockwave Player.
~~red:Check your version here~~: http://www.mozilla.com/en-US/plugincheck/
SAVE the installer to your hard drive (Desktop is a good place so you can find it). When the download is complete, exit Firefox (File > Exit), locate and double-click in the installer you just downloaded, let the install complete.
IMPORTANT: I have found it wise to always restart your system after doing anything with Adobe products.
See: '''[http://support.mozilla.com/en-US/kb/Using+the+Shockwave+plugin+with+Firefox#_Installing_Shockwave Installing Shockwave]'''
'''You''' ~~red:'''MAY'''~~ '''need to Update Adobe Reader for Firefox''': your ver. N/A; current ver. 9.3.2
~~red:Check your version here~~: http://www.mozilla.com/en-US/plugincheck/
See: http://support.mozilla.com/en-US/kb/Using+the+Adobe+Reader+plugin+with+Firefox#Installing_and_updating_Adobe_Reader
''You may be able to update from the Adobe Reader installed on your system'' instead of going to the Adobe site and downloading. Start > Program Files, find and click Adobe Reader to open, click Help, click Check for Updates.
''If you go to the Adobe site to download the current Adobe Reader:''
-'''use Firefox to download''' and '''SAVE to your hard drive''' (save to Desktop for easy access)
~~red:-See the images at the bottom left of this post to see the steps to take on the Adobe site~~
-exit Firefox (File > Exit)
-check to see that Firefox is completely closed (''Ctrl+Alt+Del, choose Task Manager, click Processes tab, if "firefox.exe" is on the list, right-click "firefox.exe" and choose End process, close the Task Manager window'')
-double-click on the Adobe Reader installer you just downloaded to install/update Adobe Reader
*'''NOTE: On Vista and Windows 7''' you may need to run the plugin installer as Administrator by starting the installer via the right-click context menu if you do not get an UAC prompt to ask for permission to continue (i.e nothing seems to happen). See this: http://vistasupport.mvps.org/run_as_administrator.htm
*'''NOTE for IE:''' Firefox and most other browsers use a Plugin. IE uses an ActiveX version. To install/update the IE ActiveX version, same instructions as above, except use IE to download the ActiveX installer.
*Also see: http://kb.mozillazine.org/Adobe_Reader ~~red:'''''AND'''''~~ [[How do I edit options to add Adobe to the list of allowed sites]]

How can I prevent Firefox from starting in Offline Mode when there is no internet connection?

Hey!
When I fire up my laptop from standby it takes some time before the wireless internet connection is established. If i am too quick and open Firefox before that happens, it automatically goes into Offline Mode, which I hate a lot.
Is there any way to disable this behaviour?
I have already tried everything mentioned here: [http://superuser.com/questions/208146/can-firefoxs-offline-mode-be-disabled http://superuser.com/questions/208146/can-firefoxs-offline-mode-be-disabled]
Also I found this addon, which unfortunately does not work with Firefox 11: [https://addons.mozilla.org/de/firefox/addon/disable-automatic-offline-mana/ https://addons.mozilla.org/de/firefox/addon/disable-automatic-offline-mana/]

That shouldn't happen in Firefox 4 or later. You should just get a page not found or server not found message.
Can you check the following setting?
(1) In a new tab, type or paste '''about:config''' in the address bar and press Enter. Click the button promising to be careful.
(2) In the filter box, type or paste '''offline''' and pause while the list is filtered
(3) Look for '''network.manage-offline-status''' and reset it to False (either double-click or right-click/reset).
Does that work?

How can I prevent Firefox from opening the file I create when I print a page with PDF Create! 5

After I print a web page using PDF Create! 5, Firefox opens the file so i can view it. Before I print, I select print properties and disable "view resulting pdf". However, the file is always opened in Adobe Acrobat, although I believe I have Adobe Reader set as default. I do not want any file to open. This happens on my non-privileged accounts. On my privileged account, the file is not opened. I have removed Firefox profiles, re-installed Firefox, Reset Firefox in Help-Troubleshooting. PDF Create!5 print screen can only be viewed in a host program such as Firefox, Libre-office Writer, or any other program that prints. They do not open the file either.

Thanks for your help. This is the Scansoft (Nuance) program. What I do not understand is why when I tell the print driver not to open the file with a privileged account, it obeys me. I am not sure where in the registry I would look for the information. I do not want to, but perhaps I should remove the Adobe Acrobat program (temporarily?) - then what would it do? Again, when I print from other programs - browsers, wordprocessors, etc - the file is not opened after printing, just with FireFox. I guess I can live with it, I have spent too much time already.

How can I prevent Firefox from shutting down to 5% when inactive?

My computer (running Win8, FF 22.0, just installed) is set for maximum performance, which means it enters sleep mode only when I tell it to. But recently FF 21.0 and 22.0 has started shutting down to 5% of its normal operating memory use after as little as 60 seconds or so of inactivity. Then when I try to use it, it will SLOWLY reload, sometimes taking as long as 5 minutes or more! This is a relatively new behavior and a basically intolerable one. I cannot find any setting under Tools that addresses this, and the right click on the icon upper left now only deals with resizing. I do not want to go back to IE and have never liked Chrome at all, so I would hate to leave FF but I simply cannot continue to wait several minutes do do everything.

At: “https://support.mozilla.org/kb/Menu+bar+is+missing Hidden menu bar:” the following appears. This reference was given in an earlier post here. My comments are added below inside << … >>>.
"If you're using Windows 7 or Windows Vista, you now have an orange Firefox button that takes the most common functions and puts them in one menu." <<THIS CLEARLY SAYS “ORANGE BUTTON” AND THAT BUTTON SHOWS ON THE SCREEN SHOT, BUT THIS ORANGE BUTTON DOES NOT DO ANYTHING BUT OFFER “RESTORE, MINIMIZE, CLOSE”>>
"To temporarily show the old style menus, just press the Alt key. "<<THIS DOES NOT WORK AT ALL>>
"• To have them shown all the time, right-click on an empty section of the Tab Strip and check Menu Bar in the pop-up menu. "
<<WHEN THE MENU BAR IS REMOVED, THERE IS A FIREFOX DROPDOWN MENU – NB NOT A BUTTON IN ANY NORMAL SENSE OF THAT WORD—BUT THE INVENTORY OF FUNCTIONS IS QUITE DIFFERENT FROM THE MENU BAR’S INVENTORY AND THEREFORE NOT THE EQUIVALENT AT ALL.>>
<<IT MAY WELL BE THAT THE WRITERS HERE ARE USING “BUTTON” IN A SLOPPY, IMPRECISE WAY (RATHER, IN TWO QUITE DIFFERENT WAYS) AND THE ORANGE ”BUTTON” THEY ARE REFERRING TO IS SOMETIMES IN FACT THE DROPDOWN MENU TAB, AND NOT THE ORANGE BUTTON AT ALL, EVEN THOUGH THEY WRITE “ORANGE BUTTON” AND DISPLAY A SCREEN SHOT WITH AN ORANGE BUTTON. IN ANY CASE NOTHING IN THIS WHOLE MESS IS ACCURATELY DESCRIBED.>>

How can I prevent Firefox from cutting off the title of a webpage for use as a file name when printing/saving as PDF if there's a / in it?

Like it says in the question - when I try to print/save a webpage as a PDF, Firefox (version 36.0, Windows 8.1 64bit, German) usually uses the page's title as the file name. Slashes are, of course, not allowed in file names, but instead of just leaving leaving it out or replacing it with a hyphen, the title is cut off and everything before the last slash is gone, which in some cases results in very odd and misleading file names.
Is this a known bug? I couldn't find anything. So I'm just wondering if there's either going to be a fix anytime soon, or whether there is a simpler solution than to generate a different title sans slashes specifically for Firefox users.
Thanks in advance for Your help!

There is more than one proxy type. 
Only an anonymous proxy will hide the IP and build two connections, one between you and the proxy and a second connection between the proxy and the website that uses an IP from that proxy. 
A normal proxy merely passes all traffic without affecting it, so websites see your IP in such a case.
*http://en.wikipedia.org/wiki/Proxy_server

How can I prevent firefox from autodetecting RSS feed,podcasts,etc.?

Whenever I visit the forum at www.vlexoforums.com, and click on a topic, firefox asks me to choose the way I would like to receive updates to the forum. It asks me to choose from google reader, microsoft outlook, preview in firefox, add live bookmarks in firefox, etc. This did not use to happen earlier. Recently I updated firefox and after that this started happening.
== I updated firefox to 3.5.10.

"Add-ons" is a mis-leading term, regarding what appears in the Add-ons Manager tab. "Addons" includes Extensions, Search Engines, Themes (Appearance), User Scripts, Styles, and Services - all of which the "Updates" can be controlled by Firefox preferences. "Plugins" are shown in the AOM too, but unlike the others, Firefox has no control over updates for Plugins. As James mentioned, Plugins aren't installed within Firefox as the other categories of "Add-Ons" are - and updates are controlled by the application that installed the Plugin that Firefox uses from each application's own set of folders or wherever in Windows files the Plugin is placed by the installer.
IMO, the biggest problem with Flash is that it is set by default to only look for an update once a month. So when Adobe updates Flash multiple times a month (3 "updates" in January alone) the Flash updater can'r catch each update as it occurs, or even within an acceptable "window of time". A user might "fall behind" as many as 3 new version releases quite easily.
As far as clicking to "Allow" each video when you're behind a version or two with Flash, at least Mozilla does a "soft block" and permits you to "Allow" - a "hard block" would make it impossible to use Flash at all. And "yes". Mozilla ''can do" a "hard block" when necessary.
In conclusion, Flash is a dying technology, which deserves to be buried. It is too "exploitable" by the "bad guys". All the recent "updates" are for security patches for fixing "holes" in Flash and stability fixes to an old application that "has seen better days" (like 10 years ago).
HTML5 Video looks like the future. Use it where you can, like at YouTube which gives you a choice for many videos they host - but you you need to enable that feature in Google preferences or all you're liable got get is Flash videos. With other websites, their users need to tell them that they want HTML5 videos only.

How can I prevent Firefox from checking whether Adobe Flash is up to date?

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