Help I can't turn off unessecary starting tabs (2nd Inquiry included)
When I open firefox I get 4 windows and I cannot figure out how to change the settings for setup of your initial Firefox start-up tabs, also how do I get an extension from the menu onto the Firefox Toolbar?
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You can check for problems with the sessionstore.jsonlz4 file in the Firefox profile folder that stores session data.
- delete sessionstore.jsonlz4 and sessionstore.js
When sessionstore.jsonlz4 is deleted you lose pinned-tabs and open tabs and you will have to recreate them, so if necessary make a note or bookmark them. sessionstore.jsonlz4 is only present in the Firefox profile folder when Firefox is closed.
You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.
- Help -> Troubleshooting Information -> Profile Folder/Directory:
Windows: Open Folder; Linux: Open Directory; Mac: Show in Finder - https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data
Note that not all extensions add a button to the Navigation Toolbar. You can check the screenshots on its Add-ons page.