How to completely reset firefox as if it was like first installed for the first time?

my firefox is very slow and when I refresh it, it remains always the same but without addons. I would like to first of all from scratch with mozilla

You can try this:

Create a new Firefox profile

A new profile will be your plugins installed by system (for example, Flash) and extensions (e.g., security suite toolbars), but no themes, other extensions or other customizations. It should also have databases of completely fresh settings and cool a cache folder.

Out of Firefox and start in the profile using Start Manager > Search box (or run):

firefox.exe -P

Do not delete anything here!

Any time want to switch profiles, exit Firefox and return to this dialog box.

Click on the button to create a profile, assign a name like FreshStart and ignore the ability to move the profile folder. After you create the profile, select it and start Firefox in this profile.

Any improvement in performance?

If Yes: you can restore a backup of bookmarks of your regular profile.

Otherwise: you might as well switch back because something else is happening.

When you return to the Profile Manager, you might be tempted to use the button to delete the profile. It's a little too easy to accidentally delete your 'real' profile, so I recommend you to resist the temptation. If you don't want to clean up later, I suggest to make a backup of all your profiles first in case something go wrong.

Tags: Firefox

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