You need to contact Norton about their plans for supporting Firefox 4. It is quite common for companies to only support a new version of a browser after it has been officially released, and not support it during the beta/release candidate phase.

Thanks for your help!! ^^

Sorry TonyE but this is not correct answer. How can you blame on other vendors to be compatible with your application. FF must be compatible with all existing apps. If it is not it must give option not to proceed without user's confirmation.

I am a Norton user too and I relay too much on Norton Toolbar. That is why I am here to seek some help. Now after installation I come to know that there is some problem with new FF & the toolbar. I have to uninstall and then reinstall old FF if at all I will use it anymore.

Sorry, but this is ridicules to give such a shameful answer.

I never knew FF works like this otherwise, I would have never even opted to use and never bothered to even create a login here. If you have guts you must regret and must apologizes to Iceflame14 . He just asked a simple question with hope of some kinda help and you just insulted him? Shame on you.

It is the correct answer, it has always been the responsibility of those making the add-ons to make them work with new versions of Firefox.

Sorry Tony but that is a chicken-*! response!

I just spent 2 hours getting my system back to 3.6 using your instructions. In the end I had to find the last download of 3.6 in my archived files to make it happen. No Firefox 3.6.x file could be found on the Mozilla or Firefox sites contrary to your instructions.

I deleted all the "extensions" like you suggested. It would have been very helpful if Firefox had stopped me before the installation of 4.0 proceeded to explain the "real" consequences of not having my Norton 4.0 toolbar.

I have been very happy with Firefox for the past 5-6 years but now you have given me a good reason to go research other browsers like Google Chrome.

IMHO it was * poor planning on Firefox's part for this launch!

Edited for language - TonyE

I don't really care who screwed up and who has to fix it. I know that I can't and I feel I should have been warned that the Norton Toolbar and Identify Safe wouldn't work if I downloaded Firefox 4.0. If I had been I would have continued to use 3.6 until the problem was fixed.

I just want to be able to use the Norton 360 Security items while browsing and logging in to web site. Now I can't. I don't want to go back to IE but I may be forced to.

I cannot believe that the firefox 4.0 was released to the public with this glaring problem. This version of firefox has been out in the beta form for quite some time and mozilla must have known that many firefox users were going to be affected by this problem. Now I'm being told that if I go back to the previous version that I will lose my bookmarks and other data. Thank god that I still have internet explorer!!

Symantec know it is their problem and have released this statement - http://us.norton.com/support/kb/web_view.jsp?wv_type=public_web&docurl=20100720113635EN&ln=en_US

@rer381 : I have backed out by installing 3.6.14 as an update and did not lose my passwords in the process -- Norton toolbar was up and running as soon as I did that.

@TonyE : 1) If Firefox is going to make a major component (used by many customers) invalid the download should warn before installing and give the option to refuse. 2) the lack of coordination with Norton is really amateurish- if users are unfamiliar with how to back out, they will be stuck without password support for 2 months - - - - going the right way to lose users with Chrome and new versions of IE coming along !

@rer381: I did not lose any bookmarks or passwords when I moved back to V3.6.16 earlier today. However, I agree with your assessment of the larger issue. It was indeed amateurish as expressed by gw_westdale.

I agree with gw_westdale that Mozilla should be warning people about what is going to be broken BEFORE they have gone ahead and installed a new release. Please, Mozilla! Can't we expect more from you than buck-passing, hand-washing, and finger-pointing?

Meanwhile, I'm not sure what to do. Could somebody explain what Norton Security functionality I'll be flying without until May, unless I revert to FF 3 or defect to IE? Will I be unprotected against malware, adware, etc coming in via FF, or is it just Identity Safe and other optional things like that?

Think of it this way. An Xbox 360 will support old Xbox games. A Playstation 3 will support old Playstation games. Not once did they ask all the hundreds of game developers to make the game again to support the new platform, they just designed their one platform to support the old games. It just makes sense. Kinda what I wish Firefox would do with their apps. If it works for Firefox 3, it should work for Firefox 4, because an update is usually supposed to ADD things and functions, not take them away. Didn't appreciate the no notice when switching over either (I use FF4), and I rely on it as well.

I have to agree with the majority here! This is a pretty crappy move on the part of Firefox! I never received any notification during installation that my toolbar wouldn't work. I did receive a notification regarding two tool bars but firefox found the updates for those supposedly and fixed them. I never would have finished upgrading had I known this. But the biggest kicker is that I was bullied into upgrading!! I couldn't use my firefox until I upgraded! Not kidding! All day long every time I tried to use firefox it freeze up, not load web pages, and I would have to force it to close! I can't tell you how many reports I filed with microsoft today! But it was funny as soon as I upgraded everything worked fine, no trouble using the net, loading pages, or anything EXCEPT MY NORTON'S TOOL BAR!!!!!!! I can't wait two months and I am pretty sure that downgrading will cause me the same problems that I have had earlier today! Sure I am no software developer or computer programmer but in my opinion if it works with one version that shouldn't change because of an upgrade!

Well, has anybody contacted Norton?

I agree that someone from Firefox should contact Norton. Norton is a security system and Firefox should be sure to include them in any new versions released.

Actually, this is a good time to give Google Chrome a try.

To go back to earlier version 3.6.16, this worked for me: Control Panel, Add and Remove Programs, Uninstall Firefox 4.0. Then go to http://www.mozilla.com/en-US/firefox/all-older.html and choose your language and click on the column that says Windows, Mac or Linux. Do it soon because they say it won't be maintained for long.

TonyE wanted dead or alive because of his nonsense answer. Many times you find on the forums people answering about things they dont really know about. They just answer for an answer to have a sekf satisfaction feeling that they shared !!!! better not too.

First Firefox made a major mistake and harmed its supporters. Second old version were supporting Norton toolbar so what is the excuse that this TonyE is bullying the supporters woith. When it was supported with the old versions supporters contacted NORTON to beg them to include their toolbar in firefox ??? Firefox either give a good answer or sweep out this (?!!!?$%^) TonyE, who doesnt have the right to say what he said.

Supporters of Firefox are

WAITING FOR AN OFFICIAL APOLOGY FROMFIREFOX

for the harm done to some and the lack of warnings and the blasphemy done by this TonyE