Firefox not compatible?

Why is Firefox not compatible with my tablet running vanilla Android 4.1 and 1GB RAM? There is no reason given in the play store.
What can I do to install it?

JAWS 10 and higher, including JAWS 12, are compatible with Firefox 4. Note that for JAWS 11, it is imperative that you update to the latest free update of that version 11.0.1476 or whichever their latest offering is. The initial version of JAWS 11 does not work with Firefox correctly.
Window-Eyes 7.5 and possibly also 7.0 through 7.2 are compatible with Firefox 4. We recommend Window-Eyes 7.5. Note that, on Windows XP, there is a problem with Window-Eyes and Firefox 4.0 which manifests itself in a crash. We are sorry for this inconvenience and have fixed this problem in Firefox 5, which is currently in beta.
The WebVisum team have published a new version of their add-on on their [http://www.webvisum.com/ Website] . Please go there and reinstall the add-on, and the WebVisum services will be available for you again.
Marco from the Mozilla accessibility team

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Mac OS 10.4, new Firefox not compatible, old Firefox disappeared

I got an on line offer to install the new Firefox. Clicked yes, tried it, but it is not compatible with my MacOS 10.4.11. The older Firefox--along with ALL my bookmarks and notes, disappeared. I am trying to update profile information for an airline and they won't accept Safari. I need to make these reservations!

Firefox 4 requires at least OS X 10.5 and an Intel Mac.
* http://www.mozilla.com/firefox/4.0/system-requirements/
For an unofficial Firefox 4 compatible version that runs on Mac OS X 10.4.11 or Mac OS X 10.5.8 (PowerPC) you can look at:
* http://www.floodgap.com/software/tenfourfox/
Firefox 3.6.x (Mac OS X 10.4 and later) can be found here:
* http://www.mozilla.com/en-US/firefox/all-older.html

Download page says current version of Firefox not compatible with my OS. Am running Mac OS X 10.5.8

Was running Firefox fine, then started getting some bugs, so deleted program and decided to start with fresh download. Download page says my OS is not compatible, but chart says it should be.

Yes, unfortunately Firefox 4 and later require the Intel processor architecture. The error message apparently doesn't distinguish between OS version and processor.
There is a project to make these recent versions of Firefox compatible with PPC. You can read about it here:
http://www.floodgap.com/software/tenfourfox/

New version of firefox not compatible with my OS? what are the risks?

Hello,
When I was prompted to update my firefox browser, I was subsequently told my Macbook OS 10.5.8 didn't support the new firefox and that I would therefore be subject to cyber attacks from now on, or something similar to that. I don't actually remember the exact phrasing. It did sound ominous. What do you suggest I do? Can I keep on using the outdated version of Firefox that I currently have? or should I switch to a different browser altogether?
Dokolo

You could turn on the Mac OS firewall, and get an antivirus. I am running Firefox 3.6.28 on my laptop with Mac OS 10.4.11, and have not run into any problems so far, being behind a router, with the firewall on and with an antivirus installed.

Why is the newest version of Firefox not compatible with Java ? All my java extensions are disabled !

I can't be entirely certain of the origin of this issue, but I've tried everything I can think of and the only thing I can nail down is that Firefox 6.0.1 is incompatible with Java. All of my extensions have been disabled without the option of even trying to enable them.
Now for the ACTUAL problem...this affect my Google/GMAIL experience and I use GMAIL for my business! The calendar used to display various mailboxes with different colours to identify different types of individuals and the Google Menu Bar on their homepage is not black, like it should be, it is TRANSPARENT with blue lettering. I can read the menu bar just fine, but the GMAIL thing is kind of important to my business!
I've tried the GMAIL forums to no avail...I've tried to uninstall Java [it wouldn't...just crashed and said there was an error...]. I even re-installed Java, but nothing changed!
I have also tried other browsers and they do the same thing, so I can't just pin it on Firefox, but I am hoping that someone here will have a good, working solution for me.
Thanks,
Dave

OK, I'll try removing all of the extensions but that doesn't explain why my GMAIL and various other JAVA related [I'm assuming] things are not displaying properly. I even went as far as to replace my video card and download the most up to date drivers...still no change, but I will try removing all of the disabled extensions.
Thanks and if anyone has any other ideas I'd love to hear them
Dave

Google Play Store shows firefox not compatible with this device even when firefox says tested for that device.

I am using Samsung Galaxy Ace (Samsung GT-S5830i) Android phone and I want to install Firefox for Android on that device.
Your website says that firefox has been tested to work with this device: https://support.mozilla.org/en-US/kb/will-firefox-work-my-mobile-device
Still, Google Play Store shows the following messaage: This app is incompatible with your Vodafone IN Samsung GT-S5830i.
What should I do?

Samsung Galaxy Ace GT-S5830/GT-S5358 is what is shown on the article. You are saying yours is "S5830i". There is an "i" at the end of the model which may be the restriction. I will contact one of our mobile associates to look into this if the answer provided does not meet your needs. Thank you.

OVI Maps extension for Firefox not compatible

Extension doesn't work with the newest stable release of Firefox 3.6. Turning off compatibility check in FF doesn't help. We need a new plugin.

offthegrid wrote:
The maps don't even show up in the latest Firefox.
No issues 3.6.13 on a Mac!
Happy to have helped forum with a Support Ratio = 42.5

Firefox not compatible with norton family

When installing update 18.0.1 it said norton family would not work. Barring this how do I revert to an older version that will work with norton family.

Problems with Norton Family on the Norton forums. Post there for assistance - http://community.norton.com/t5/Norton-Family/bd-p/NortonFamily

I got a request to upgrade to firefox 4; it is not compatible with my kaspersky and one other program. I want firefox 4.0 removed and the 3.16.7 version back on - how?

Started browser as usual.
Browser informed me that the 3.16.7 version was not secure; I should upgrade to 4.0
First problem was the kaspersky was not compatible.
Second problem was hp photo not compatible.
Third is the browser user interface is too different from expected.
Where can I get firefox 3.16.7 so I can continue the way I am used too?

You can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html
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

Firefox will not open after new update; Error: Platform version '1.9.2.13' is not compatible

After accepting the new update I got this error message when trying to restart Firefox:
XULRunner
Error: Platform version ‘1.9.2.13’ is not compatible with
minVersion >= 1.9.2.14
maxVersion <= 1.9.2.14
I have tried:
- Opening in Safe Mode; same error
- Uninstalling, deleting remaining info in C>ProgramFiles>MozillaFirefox folder, and reinstalling.
- Updating Avast antivirus in case that was interfering.
Now when I try to start Firefox I get this message;
Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.
But there is nothing happening in the Windows Task Manager. Please, somebody save me from Windows Internet Explorer!!

I experienced this error updating from Firefox 3.6.13 to 3.6.14 and resolved it by doing a 'clean' install' as described. It occurred again in updating from 3.6.14 to 3.6.15 and this time a clean install failed to rectify it. (Anyway, I don't want to have to go through this every time.)
Work-around: Shut down Firefox. Edit application.ini (typically "C:\Program Files\Mozilla Firefox\application.ini")
[Gecko]
MinVersion=1.9.2.15
Change to 1.9.2.13
Save. Start Firefox. Dirty? Yes. Works? Yes.
(Gecko is the forerunner or XULrunner)

How do I access "Firefox is NOT compatible with this application. For best performance, please use Internet Explorer 5.0 and above...." web sites; when I try to download any alternate browser, then a warning that alternate is "imcompatable with your opera

How do I access websites that warn: "Firefox is NOT compatible with this application. For best performance, please use Internet Explorer 5.0 and above...."? When I try to download any alternate browser, all I get is another warning that the alternate is "not compatible with your operating system." Is Firefox preventing this? The site listed below is a job application site. I've had this same problem with other job application sites also.
== URL of affected sites ==
https://storefront.kenexa.com/lithia/cc/Home.ss

There should be a User Agent Switcher menu item under Tools, which gives you the browser names you can impersonate.
The menu item name changes to the browser UA you are presently using.
There is also a User Agent Switcher button, you can add it using View -> Toolbars -> Customize, and dragging the button to your toolbar.
See http://chrispederick.com/work/user-agent-switcher/features/ and http://chrispederick.com/work/user-agent-switcher/help/
You can just start trying IE versions (or the versions it says on the site) until it lets you in.

Old Bookmarks are not compatible with Firefox version 20+

Background Information:
I use the old client version 3.6 as there's an old utility addon that the author stopped updating and will not work with the newer revisions. Despite disabling the update feature both in about:config and in preferences, the browser still eventually updates (Originally I was using 3.4, and would prefer to use that, but no matter how much I try I can no longer roll it back from 3.6 to 3.4 even if I reinstall using a 3.4 installer). As a result I've had a habit of keeping a copy of my firefox directory in case it updates itself again without asking, which it has. This might help you guys out in answering the countless people who have lost their bookmarks due to the upgrades released this year, and will hopefully someone to investigate and release a patch/utility to fix the issue.
Issue:
I have verified that the newest clients from at least version 20 and onwards, are not compatible with the older bookmark JSON files. People who have been upgraded to the latest revision not only lose their bookmarks, but CANNOT restore them either, as Firefox will only return the error message: "Unable to Process the Backup File".
I have confirmed that the files themselves are perfectly intact with no sign of corruption, and are as intended. They restore ok to older browser revisions (In my case specifically 3.6), but will not restore to the newer client revisions. This is not a fault with the bookmark backups, but with the newer clients (I'm guessing they changed the way they store the information in the JSONs at some point. I note in the code for the JSONs that GUID was never used in the older revisions, but it is in the newer revisions. Perhaps this is causing an incompatibility issue? You just need to adjust the client so that it looks for the GUID and if none can be found to ignore it rather than decide the file is corrupt.
Old JSON Code snippet: {"title":"","id":1,"dateAdded":1306666129870000,"lastModified":1306670152435000,"type":"text/x-moz-place-container","root":"placesRoot","children":[{"title":"Bookmarks Menu","id":2,"parent":1,"dateAdded":1306666129870000,"lastModified":1381254048121000,"type":"text/x-moz-place-container","root":"bookmarksMenuFolder","children":[{"title":"Recently Bookmarked","id":6,"parent":2,"annos":[{"name":"Places/SmartBookmark","flags":0,"expires":4,"mimeType":null,"type":3,"value":"RecentlyBookmarked"}],"type":"text/x-moz-place","uri":"place:folder=BOOKMARKS_MENU&folder=UNFILED_BOOKMARKS&folder=TOOLBAR&sort=12&excludeQueries=1&excludeItemIfParentHasAnnotation=livemark%2FfeedURI&maxResults=10&queryType=1"},{"index":1,"title":"Recent Tags","id":7,"parent":2,"annos":[{"name":"Places/SmartBookmark","flags":0,"expires":4,"mimeType":null,"type":3,"value":"RecentTags"}],"type":"text/x-moz-place","uri":"place:sort=14&type=6&maxResults=10&queryType=1"},{"index":2,"title":"","id":8,"parent":2,"dateAdded":1294868015246000,"lastModified":1294868015246000,"type":"text/x-moz-place-separator"}
New JSON Code Snippet: {"title":"","guid":"5rkFafJ6AnRZ","id":1,"index":0,"dateAdded":1396387525168000,"lastModified":1396387525168000,"type":"text/x-moz-place-container","root":"placesRoot","children":[{"title":"Bookmarks Menu","guid":"m7vLM41-lzQi","id":2,"index":0,"parent":1,"dateAdded":1396387525168000,"lastModified":1396387526173000,"type":"text/x-moz-place-container","root":"bookmarksMenuFolder","children":[{"title":"Recently Bookmarked","guid":"BEffyw6xva93","id":13,"index":0,"parent":2,"dateAdded":1396387526172000,"lastModified":1396387526172000,"annos":[{"name":"Places/SmartBookmark","flags":0,"expires":4,"value":"RecentlyBookmarked"}],"type":"text/x-moz-place","uri":"place:folder=BOOKMARKS_MENU&folder=UNFILED_BOOKMARKS&folder=TOOLBAR&queryType=1&sort=12&maxResults=10&excludeQueries=1"},{"title":"Recent Tags","guid":"WmnlbVv38Bjv","id":14,"index":1,"parent":2,"dateAdded":1396387526172000,"lastModified":1396387526172000,"annos":[{"name":"Places/SmartBookmark","flags":0,"expires":4,"value":"RecentTags"}],"type":"text/x-moz-place","uri":"place:type=6&sort=14&maxResults=10"}
Solution?
Well in my case I had a backup copy of the old revision directory. To restore I opened the copy, and exported the bookmarks as an HTML, which I restored in the newer client. If you do not have a copy of the old client, the best thing would be to try and reinstall an older revision of the client and either make a copy of the program folder and use another copy of that so you can use both the new and old clients and not worry about the loss of an older revision since you'll always have 2 copies of the old client (One you're using, one you use to restore if it upgrades). Or you export the bookmarks as an HTML, then upgrade the client to the newest and import the HTML instead of the JSON files.
Please investigate and create an easier solution to a silly incompatibility issue. ^_^

This happens if you create a backup and forget to add the file extension manually when Firefox didn't add it automatically or you may have removed it when modifying the suggested name.

HP Smart web printing is very useful web printing extension which is not compatible with any version of firefox till now but compatible with Internet Explorer any version. So Please do correction. Thanks

[There is a link below from where software can be downloaded and after installing this you will see that it is not compatible with any version of Mozilla Firefox of any Window version (7, XP).]
[http://ftp://ftp.hp.com/pub/softlib/software10/COL20395/dj-56929-3/HP_Smart_Web_Printing_v4.6.exe

It is up to HP to make that program compatible with Firefox.
That application last worked in Firefox 3.5, but HP was always very lax in updating it for a new version of Firefox. Usually they didn't bother to update it until like halfway through the "run" of a particular Firefox version. It worked for like 6 months and then a new version of Firefox was released, and it didn't work for like 6 months until HP got around to fixing it - then the cycle repeated.

I'm running Firefox 3.6.23. I get the message that HP Smart Web Printing is not compatible.

I'm running Firefox 3.6.23 under Windows 7 64 bit. I want to use the HP Smart Web Printing program but under the add-ons I get the message that it is not compatible with this version. What ver. should I be running for compatibility? I saw at one time the icon on the toolbar but it went away after the next reboot. Help.
Ray
This question was solved.
View Solution.

It is listed as compatible with Internet Explorer versions 6, 7, and 8 .
Best regards,
erico
****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
2015 Microsoft MVP - Windows Experience Consumer

I download Firefox 4 which is supposed to be compatible with OSX10.4 and above. But when I click the icon I get a message that it is not compatible with version of OSX10.4.11 and it wont load

I download Firefox 4.o and drag to app folder then to dock. When I double click on the dock icon I get a message the forefox is not compatible with this version of OSX (which is OSX10.4.11). What gives?

Firefox 4 requires at least OS X 10.5 and an Intel Mac. You can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html
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

Firefox not compatible?

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