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firefox 4 is too uncomfortable for mouse operations, menues are too tiny, how can I reinstall the older version 3.6 ? in German or English

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firefox 3.6 is much more convenient for me, than version 4. I want to get it back, but how? Look at the little firefox-button on the topside left (red button) , where are the comfortable menues to konfigurate the browser, to handle all menues easily ?

I urgently want to reinstall the precious version again!!!
firefox 3.6 is much more convenient for me, than version 4. I want to get it back, but how? Look at the little firefox-button on the topside left (red button) , where are the comfortable menues to konfigurate the browser, to handle all menues easily ? I urgently want to reinstall the precious version again!!!

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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

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You can also look at:

You can use one of these extensions to adjust the default font size and page zoom on web pages: