今天很多扩展都不能用了TOT,56.0.2只能撑到今天了...
Today, many extensions can't use TOT, 56.0.2 can only last until today..

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The best Firefox feature in a long time. Well done Mozilla!

Honestly one of the coolest implementations now giving you a weapon against the abomination that tech companies have turned capitalism into lately. Does Amazon tell Facebook what to post on your feed? Ever wonder how 80% of websites you visit can somehow acquire instant access to post-on/edit your perpetually logged-in Facebook or Google account?! Do you ever feel as though all of your private Google searches are now giving everyone this detailed summary of all your interests? Makes me sick.

Stop.
Stop making it so easy for them! You shouldn't be offering up all this constantly cross-referenced personal information everyday:
Just container all the sites separately! Facebook, Amazon, your TV shows, your email. You'll quickly feel the giant relief of these multi-billion dollar companies struggling to take advantage of your cumulative browsing habits. Instantly, just like that, they've just lost their ability to gang-up on poor you.

Do it. You should confuse the hell out of em. Feel the power, you strong independent internet user, you.

i usually forget to logout from my account at the end of the office. It will good if i can set timer that will logout my all accounts from those container.

Incredibly good! SO USEFUL, Love it!

Update 2020-03: Now support sync, i got 45 containers because i used a lot of computers, but now that i sorted that out it is great.

Old: Cant get it to sync between computers. No point if i have to set it up everytime on every computer.
The idea is supernice do, i can manage multible env. from one instance of the browser. So when it's finished i would def. use it.

Great idea in principle, but after having lost all my custom containers yet again after an update, it seems like far more trouble than it is worth.

It's really useful and makes things easier for me (I believe for majority of users). Would just like Firefox Sync to also sync containers and URLs inside them. That would make things even better in my opinion.