To open a new window, you must first close the existing Firefox process, or restart your system. The message looks like this: Firefox is already running, but is not responding. Browse to the bookmarks.html file created by your bookmarks export (see above). Sometimes when you try to start Firefox, it warns you that Firefox is already running.Follow the menu path Bookmarks > Show All Bookmarks > Import bookmarks from HTML.

Another possible cause is that your Mozilla application cannot.

From Firefox Profile Manager, choose to launch the new profile. This error will occur if you moved the profile to an external drive and forgot to turn it on.

Import bookmarks to your new Firefox profile.

Follow the menu path Bookmarks > Show All Bookmarks > Export bookmarks to HTML Result: A file named bookmarks.html will be created in the location of your choice, such as on the Desktop.

From Firefox Profile Manager, choose to launch the old profile. Hi, is there an easy way to switch between Firefox profiles Currently I'm using the 'profile switcher' addon which doesn't seem to be updated for FF57 and I don't want to always use the detour to close Firefox and open the profile manager.

Export bookmarks from your old Firefox profile.

How can I import my bookmarks to the new profile? Later on, whenever you will double click on that particular icon, it will open Firefox with the specific user profile. The About Profilespage includes the following options: 1. This will open the About Profilespage, where you can view, create and manage your Firefox profiles. After that perform this command in webdriver. It will show this dialog box create profile with new name and exit the window. Run this command firefox.exe -p in run window.

NOTE: Lincoln Laboratory users should follow instructions here: Type about:profiles into the address bar and press the EnterReturn key. First of all create a new firefox profile steps for it are 1.

In Step III, Final Steps, be sure to select MIT Certificate Authority, then select 'Trust this CA to identify websites' and press OK.

Enter your Kerberos username, MIT ID and password, and follow the prompts.

If you're accessing certificate protected sites, you'll need to obtain MIT certificates for the new profile.

How to open firefox profile manager