Security/Fusion: Difference between revisions

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'''Fusion''' ('''F'''irefox '''USI'''ng '''ON'''ions) is a Mozilla project, in collaboration with [https://www.torproject.org/ the Tor Project], to bring the cutting-edge security and privacy features to Firefox users by leveraging the technologies of Tor Browser and Tor Proxy.
'''Fusion''' ('''F'''irefox '''USI'''ng '''ON'''ions) is a Mozilla project, in collaboration with [https://www.torproject.org/ the Tor Project], to bring the cutting-edge security and privacy features to Firefox users by leveraging the technologies of Tor Browser and Tor Proxy.


This project is experimental and in the beginning phases.
This project has been going successful for a long time and now again experimental and in the beginning phases.
 


== Background ==
== Background ==
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Fusion was initiated in 2018.  Mozilla and the Tor Project are working closely on this project.
Fusion was initiated in 2018.  Mozilla and the Tor Project are working closely on this project.
Fusion is being revived in 2025. Exact goals are still to be figured out.


== Project Vision ==
== Project Vision ==
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We believe the collaboration between Mozilla and Tor can create a positive, significant impact on the world by bringing cutting-edge privacy enhancing technology to more users.
We believe the collaboration between Mozilla and Tor can create a positive, significant impact on the world by bringing cutting-edge privacy enhancing technology to more users.
== Motives ==
Further incentives for working together for Mozilla:
* Leverage engineering effort Tor Browser developers put into Tor Browsers on building the fingerprinting protection to include these protections for a wider audience
* Collaborate with experts on browser privacy to advance privacy protections in Firefox
* Eventually provide a mode with same privacy guarantees as Tor Browser
Incentives for Tor Browser folks:
* Being able to bring more protections to Tor Browser that currently wouldn't be feasible with the rebase workflow
* Reduce rebasing efforts for shipping Tor Browser freeing up engineering resources for other tasks
* Eliminate barriers for landing patches in Firefox to contribute directly to mozilla-central


== Project Goals ==
== Project Goals ==
Although this project is still experimental and in beginning phases, the ultimate long-term goal of Fusion is to integrate full Tor Browser features in Firefox. There are many potential paths for our project, including enabling some features by default and others only in [https://support.mozilla.org/en-US/kb/private-browsing-use-firefox-without-history Private Browsing Mode].
The ultimate long-term goal of Fusion is to integrate full Tor Browser features in Firefox. There are many potential paths for our project, including enabling some features by default, others only in [https://support.mozilla.org/en-US/kb/private-browsing-use-firefox-without-history Private Browsing Mode] while some only in [https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop ETP-Strict]. If the protection doesn't fit in any category, it is possible to land it behind a pref disabled in all Mozilla channels.


We need a lot of research and experiments to support the decision-making for the final solution.  However, the clear short and mid-term goals are:
We need a lot of research and experiments to support the decision-making for the final solution.  However, the clear short and mid-term goals are:
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* '''We will determine how best to integrate the Tor proxy into Firefox'''
* '''We will determine how best to integrate the Tor proxy into Firefox'''
* '''We will allow First Party Isolation and Fingerprinting Resistance to be enabled only in Private Browsing Mode'''
* '''We will allow First Party Isolation and Fingerprinting Resistance to be enabled only in Private Browsing Mode'''
{| class="wikitable"
|+ Motivations
|-
! Mozilla !! Tor
|-
|
* Ship existing fingerprinting protection to a wider audience
* Collaborate with experts on browser privacy to advance privacy protections in Firefox
* Eventually have the same privacy guarantees as Tor Browser
||
* Reduced rebasing effort on patchset for Tor Browser
* Collaborate with Mozilla developers on Privacy features in the Browser that couldn't be implemented with the rebase workflow
* Reduced efforts on getting patches reviewed and landed in mozilla-central
|}


== Project Lists ==
== Project Lists ==
Confirmed users
425

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