V10 is slow and hangs, how do I downgrade to v9 to get a working browser again?

I have just had the automatic upgrade install v10 of Firefox. It is now very slow, often hangs for long periods at 100% CPU, cannot be interrupted. I cannot click on buttons or links for 10s of seconds after a page load. It is now basically a non-interactive application.

Opt in for sending data to firefox, the data is anonymous and helps developers looking at such problems. If you also use the about:telemetry option from the add-on [https://addons.mozilla.org/en-US/firefox/addon/abouttelemetry/] then you see a graphical representation of that data it may be of use if some knowledgeable person is to assist with the troubleshooting.
I do not have the specialised knowledge, although I may be interested in the results, but will probably not be online much now until next week.
You may also need to consider memory usage & amount of RAM and page file use.
One of the problems Firefox 10.0.1 is addressing is hangs, possibly hangs related to java use, so that upgrade may help.
The data sending option may not be fully and openly documented at the moment but use, I think:
* Firefox Button -> Options -> | Advanced | -> | General | system defaults
* see [[options window - advanced panel]]
If you make a habit of deleting and therefore rebuilding the places.sqlite database at least take the precaution of manually backing up your bookmarks before doing that
* see [[backing up and restoring bookmarks]]
* you may also be interested in [[what is firefox sync]], but take care with that, there may have been some recent teething troubles with a change,and it is intended to copy & synchronise NOT be a foolproof backup system

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Hello There,
I am using the STRUTS Framework 1.1 for developing web application.
My objects:
Buyer{
String scompanyName;
String scompanyAddress;
Supplier{
String ssupplierName;
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X--spYro--X

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Backuplist
Carbon Copy Cloner
Data Backup
Deja Vu
iBackup
JaBack
Silver Keeper
MimMac
Retrospect
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ynchronizer
SuperDuper!
Synchronize Pro! X
SyncTwoFolders
Synk Pro
Synk Standard
Tri-Backup
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