I lost my menu bar and AVG Security Toolbar and immediately switched back to the previous version of Firefox.

After installing Firefox 4 beta and restarting I no longer had my menu bar (File Edit...) nor my AVG Safe Search Security Toolbars. As a result, I immediately reinstalled the previous version of Firefox which I had installed just a few minutes previously. In the future, I will make sure I have the install/exe for this version so that I can be insured of having a version that functions properly. Until then, and in the future, I WILL NOT be beta testing any versions of Firefox/Thunderbird. I just don't feel comfortable risking it as I am computer illiterate, it's not worth the danger...

In addition I lost my "Home" button, including with the version I now run (3.6?) and had to create a folder for the location on the menu toolbar.

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I recently upgraded to 5.0 and one of my add-ons was disabled (incompatible), can I (how do I ) switch back to the previous version of Firefox?

My Turbo-Saver (from Upromise.com) Add-on is incompatible with Firefox 5.0 and was disabled when I upgraded. i want to switch back to the previous version of Firefox where it is compatible.

http://support.mozilla.com/en-US/kb/Installing+a+previous+version+of+Firefox
http://www.mozilla.com/en-US/firefox/all-older.html

Ihave used Firefox for years with great success. But since I updated to Firefox 4.0.1, it has become almost unusable. It is agonizingly slow for me, and crashes constantly. Can I go back to the previous version of Firefox?

I am using windows XP, and have a DSL connection that is not very fast. I think the new version of Firefox may be too complex and have too many things going on for my connection.
The last version worked flawlessly. I had no problems until updating to Firefox 4.0.1, but now I can barely use it.

Try a new Profile.
http://kb.mozillazine.org/Creating_a_new_Firefox_profile_on_Windows

Recently, I updated to Firefox 4.0.1, and the new version disabled several of my programs, including my anti-virus. How can I go back to the previous version of Firefox?

I want to go back to the previous version of Firefox, because the new version (4.0.1 I think) that I downloaded disabled several of my programs, including my anti-virus program, because they were incompatible with the new version of Firefox. How do I get back to the previous version of Firefox and re-enable the disabled programs?

* [/questions/777886]
Some gestures have been removed in Firefox 4.
You can restore the zoom feature by changing the values of the related prefs on the about:config page.
browser.gesture.pinch.in -> cmd_fullZoomReduce
browser.gesture.pinch.in.shift -> cmd_fullZoomReset
browser.gesture.pinch.out -> cmd_fullZoomEnlarge
browser.gesture.pinch.out.shift -> cmd_fullZoomReset
browser.gesture.pinch.latched -> false
To open the about:config page, type about:config in the location (address) bar and press the "Enter" key, just like you type the url of a website to open a website. 
If you see a warning then you can confirm that you want to access that page. 
You can use the Filter bar at to top of the about:config page to locate a pref more easily.

Firefox alerted me that an update was available. I allowed firefox to install it. Firefox now has EVERY web site "Untrusted" and will not allow me to go there, not even to Microsoft's support page. How do I roll back to the previous version of Firefox?

EVERY SITE IS UNTRUSTED, including support.mozilla.com
The problem began as soon as I allowed Firefox to install the latest update.
I want to UNINSTALL the latest update and roll the product back to the previous version that was working.

Is the Date / Time set correctly on that PC?

How do I roll-back to the previous version of Firefox? An auto update occurred and now one of the programs used at the office (ACT! v6.0 SwiftMail) won't run with the browser.

The office I work in uses a very old version of ACT!, an accounting package. This package has a component called SwiftPage, an antiquated email system that enables us to email from the ACT DB. SwiftPage runs via the web browser.
Firefox just did an auto update (that I will have to find out how to turn off) and now SwiftPage won't run as it is not compatible.
Can I "roll-back" my version of Firefox or do I have to uninstall and try to re-install an older version?
HELP!

Try loading and using the add-on from this link: https://addons.mozilla.org/en-US/firefox/addon/add-on-compatibility-reporter/
Many add-ons do in fact work if you force them to run. The procedure to roll-back is given in this article: [[installing previous versions of firefox]]
Unfortunately the official Firefox policy is that you downgrade to 3.6 which is supported for a while longer, and not the now unsupported Firefox 4. If after installing and running the ''add-on compatibility reporter'' you still have problems there are ways around the official policy.
I think it is absurd that Firefox 4 may be used by tens of millions of users one day and a few days later those that upgrade to Firefox 5 should be not only told not to use a now unsupported browser, if they need to revert due to problems, but are actually obstructed in attempts to do so. See also [/questions/840397#answer-205154]

Ever since upgrading to Firefox 4, my webpages load much much slower. How can I go back to the previous version of Firefox and keep my bookmarks, etc.?

I don't have any details. The Question explains it all. We just upgraded from 1.5 Mbps to 18 Mbps download speed and webpages opened really quick until I downloaded and installed Firefox 4. I have Internet Explorer 9, but I do not use it. I would just like to go back to the most current previous version of Firefox and keep my settings and bookmarks to see if webpages still load as slow as they are loading now. If so, then it's not the browser and I'll have to troubleshoot.

You can download Firefox 3.6 from this page:
http://www.mozilla.com/firefox/all-older
However, I'm not sure of the best procedure for removing Firefox 4. You might want to search these forums a bit for advice so you don't lose Bookmarks and other settings.

I'd like to go back to the previous version because vs does not support AVG search

Version 6 does not support the AVG search add-on, how do I get back to the previous version of Firefox?

Instead of Downgrading to a previous version, you can use - '''Web of Trust Safe Browsing Tool 20110704''' extension
* https://addons.mozilla.org/en-US/firefox/addon/wot-safe-browsing-tool/
Check and tell if its working.

I downloaded the new version of Firefox and it will not open certain of the addresses that I use to run my business. How can I delete this version and go back to the previous version? thank you

I would like to revert back to the previous version of Firefox. Please tell me how to do this

hello and thank you for your suggestion. I have tried it and, when trying to open a program which I previously was able to, still get the following message:
Remote XUL
This page uses an unsupported technology that is no longer available by default in Firefox.
Please contact the website owners to inform them of this problem.
Seems unbelievable that I previously had no problem and now I do. Have you any suggestions to overcome this? Do you think I can go back further in Firefox history to get a version that will make it possible to access this. Many thanks! Lynn

Downloaded new version and now everything is screwed up!!! How do I get back to the previous version?

I downloaded the new version of Firefox and now nothing is working right on my computer!!! How do I get back to the previous version of Firefox because I am hating the new version!

Someone updated this extension. Check the comments, you will find the link there
https://addons.mozilla.org/en-US/firefox/addon/auto-shutdown/

How can I re-download the previous version of Firefox. I have lost most of my add-ons with 4.0 including my password manager. This is a calamity and I've changed my default browser from Firefox. Help!!!

The problem is very simple. As soon as I downloaded Firefox 4.0 I lost my add-ons. The add-ons were the reason I have been using Firefox for several years. This seems to be ludicrous. The new version should be able to manage integration of existing add-ons or the Firefox team should have provided the add-on authors with advance technical information before releasing 4.0 to the world.

To downgrade to Firefox 3.6 first uninstall Firefox 4, but do not select the option to "Remove my Firefox personal data". If you select that option it will delete your bookmarks, passwords and other user data.
You can then install the latest version of Firefox 3.6 available from http://www.mozilla.com/en-US/firefox/all-older.html - it will automatically use your current bookmarks, passwords etc.
To avoid possible problems with downgrading, I recommend going to your profile folder and deleting the following files if they exist - extensions.cache, extensions.rdf, extensions.ini, extensions.sqlite and localstore.rdf. Deleting these files will force Firefox to rebuild the list of installed extensions, checking their compatibility, and reset toolbar customizations.
For details of how to find your profile folder see https://support.mozilla.com/kb/Profiles

I was adding items with the intent of command z 'ing them back to their original when it crashed, autosaved, and my original numbers were lost to the temp numbers plugged in... how can i get back to the previous version? Because it had closed, command z

I was adding items with the intent of command z 'ing them back to their original when it crashed, autosaved, and my original numbers were lost to the temp numbers plugged in... how can i get back to the previous version? Because it had closed, command z

Sorry, this happened in CLOUD numbers....

I loaded firefox 5, now all i have is a purple surround with a white screen, how do i get rid of this and go back to the old version of firefox????

i was using the previous version of firefox and it worked fine,
the new version firefox 5 came up to down load so i did this and now when i press the firefox icon all that comes on screen is a blank firefox window....purple surround with blank window..
i have vista basic...

Your profile might have been corrupted during the upgrade. I suggest trying a new profile. Close Firefox, then on the Windows start menu, type or paste this into the Run or search box:
 firefox.exe /ProfileManager
Create a new profile, which will be more or less plain vanilla. Assuming that works normally, you can move key settings like bookmarks from your problem profile to the new profile, see: [https://support.mozilla.com/en-US/kb/Recovering+important+data+from+an+old+profile Recovering important data from an old profile].
If that doesn't work, here's the process to roll back.
Due to security vulnerabilities, rolling back to Firefox 4.0.1 is not recommended. Firefox 3.6.18 would be the safer choice.
First, I recommend backing up your Firefox settings in case something goes wrong. See [https://support.mozilla.com/en-US/kb/Backing+up+your+information Backing up your information]. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)
Next, download and save Firefox 3.6 to your desktop for future installation. http://www.mozilla.com/firefox/all-older
Close Firefox 5.
You could install Firefox 3.6 over it (many have reported success) or you could uninstall Firefox first. If you uninstall, do not remove your personal data and settings, just the program.
Unless you have installed an incompatible add-on, Firefox 3.6 should pick up where you left off. If there are serious issues, please post back with details.
Note: When you first start up, you might be in the new blank profile. In that case, close Firefox and use the profile manager to switch back to your default profile.

Images loaded fine in the previous version of firefox, but now do not open in firefox 5. It is our business' website. it opens and looks fine in explorer and other browsers.

Images (actually graphics) loaded fine in the previous version of firefox, but now do not open in firefox 5. It is our business' website. it opens and looks fine in explorer and other browsers. However, please goto www.trinitystone.biz (using Firefox 5)and look at how the top menu bar has a black box surrounding it and the bottom menu also has this black bar. It is not supposed to be there, if you view the site from IE, you will see what it is supposed to look like. Any help would be appreciated! Thanks

You can modify the pref keyword.URL on the about:config page to use Google's "I'm Feeling Lucky" or Google's "Browse By Name".
* Google "I'm Feeling Lucky": http://www.google.com/search?btnI=I%27m+Feeling+Lucky&ie=UTF-8&oe=UTF-8&q=
* Google "Browse by Name": http://www.google.com/search?ie=UTF-8&sourceid=navclient&gfns=1&q=
* http://kb.mozillazine.org/keyword.URL
* http://kb.mozillazine.org/Location_Bar_search

I lost all my passwords from the previous version of Firefox when I upgraded to Firefox 4. I have all the files. Is there any way to import them into Firefox 4?

Typically, when I have upgraded a program, all of the bookmarks, passwords, etc. have transferred to the newest version but, for some reason that did not happen with Firefox 4. I still have all my preferences files as they were moved to the trash. Is there any way I can import them back into the new version of Firefox as it is very frustrating to have lost them.

If you used the option to delete settings, or whatever it is worded when uninstalling, Firefox will remove all your important data information from profiles for all installed versions of Firefox, and you will then need luck and a file recovery utility to try to restore the information.
You mentioned files being moved to Trash, I was hoping you may still have the required original files. I use Windows XP, and I realise Macs use different locations for files, but I think the files have the same names.
See
*[[profiles]]
*http://kb.mozillazine.org/Password_Manager
*http://kb.mozillazine.org/Profile_folder_-_Firefox
*http://kb.mozillazine.org/Recovering_a_missing_profile
*[[lost bookmarks]]
Note the last article discusses problems when bookmarks are lost, and some of the possible reasons and solutions. Obviously I do not know what has actually happened in your case, and whether or not you used the delete option I initially mentioned.

I lost my menu bar and AVG Security Toolbar and immediately switched back to the previous version of Firefox.

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