2. Tails
3. wiki/src/support/faq.*.po
4. Russian
5. Zen

No. Tails provides upgrades every six4 weeks, thatwhich are thoroughly tested
to make sure that no security feature or configuration gets broken.
Updating add-ons in <span class="application">Tor Browser</span> might
break the security built in Tails.

Tails provides upgrades every 4 weeks, which are thoroughly tested to make sure that no security feature or configuration gets broken.

InstallUpdating add-ons in <span class="application">*Tor Browser</span>* might break the security built in Tails.

Updating add-ons in *Tor Browser* might break the security built in Tails.

This second synchronization is made by sending HTTPS queries through Tor to several
websites and deducing a correct time from their answers. TheYou can see the
list of websites that could be queried in this process can be found in `Tails can connect to in *[[!tails_gitweb config/chroot_local-includes/etc/default/htpdate.pools desc="/etc/default/htpdate`.pools"]]*.

This second synchronization is made by sending HTTPS queries through Tor to several
websites and deducing a correct time from their answers. You can see the
list of websites that Tails can connect to in *[[!tails_gitweb config/chroot_local-includes/etc/default/htpdate.pools desc="/etc/default/htpdate.pools"]]*.

You can install <span class="code">`youtube-dl</span>` as an [[aAdditional
package|doc/first_steps/additional_software]]. <span class="application"> Software|doc/persistent_storage/additional_software]]. *youtube-dl</span>
* allows downloading videos from more than
[700 websites](https://github.com/rg3/youtube-dl/blob/master/docs/supportedsites.md).

You can install `youtube-dl` as [[Additional Software|doc/persistent_storage/additional_software]]. *youtube-dl* allows downloading videos from more than [700 websites](https://github.com/rg3/youtube-dl/blob/master/docs/supportedsites.md).