Fórum podpory Firefox

My addons/extensions disappear when I reboot my MACBOOK . I have installed DuckDuckGo, ADBlocker, Capitalone and some others. However, when I restart my computer the next day all of my addons/extensions are no longer there. I have reinstalled at least 3 times and with the sme result. Please Help ! Thanks

The second time I lost all my data(200 tabs, bookmark panel, pws, addons). My steps: 1. Sync all data into 1 firefox account from 1 device 2. Reinstall my OS on the same device. 3. Connecting back by logging in and pressing the sync button and... Blah! I see nothing. No synced tabs, no bookmark panel. At the same time I did this kinda operation with having connected 1 account to 2 virtual devices(1 - real OS, 2 - Virtualbox). So could you please explain how Firefox Sync works? Is there a way to use sync account as a keeper for tabs and bookmark panel without using 2 devices? Or other ways? Thanks!

Trying to request a demo from bigcommerce.com. It complains javascript is not enabled. ("Please enable javascript and try again" about:config shows javascript.enabled = true.

What I've tried: 1. Disabled all addons / extensions 1 by 1 until they were all disabled. 2. Turned off tracking protection 3. Turned off content blocking. 4. Set all group policies to "not configured" (Had only disabled off telemetry and update any way). 5. Set network settings to "no proxy". 6. Cleared cache 7. Removed all bigcommerce.com cookies. 8. Reset all permissions (location, camera, notifications etc).

If I restart with add ons disabled it works fine, yet I'd disabled all add ons. The only preferences I had disabled were related to telemetry (in about:config).