# uBlock Origin integration with Tor Browser

**URL:** https://forum.torproject.org/t/ublock-origin-integration-with-tor-browser/19078
**Category:** Tor Browser Desktop
**Tags:** fingerprinting, tor-browser
**Created:** [May 26, 2025, 12:13am UTC](https://forum.torproject.org/t/ublock-origin-integration-with-tor-browser/19078 "2025-05-26T00:13:51Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Deepth-Haze](https://forum.torproject.org/user_avatar/forum.torproject.org/deepth-haze/32/6962_2.png) [@Deepth-Haze](https://forum.torproject.org/u/Deepth-Haze)
#### Post date: [May 26, 2025, 12:13am UTC](https://forum.torproject.org/t/ublock-origin-integration-with-tor-browser/19078/1 "2025-05-26T00:13:51Z")

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Operating System : Windows 11  
Browser Version : 14.5.2  
Security Level Used : Block All Scripts  
Extensions Used : Ublock origin

Website Visited:Starpage Search  
Image : Showcasing Ublock Origin

 ![Screenshot (237)](https://forum.torproject.org/uploads/default/original/2X/2/23358402de24bb71b3dd3a9871566503dee98b58.png)

Website Visited: Brave Search  
Image : Showcasing Ublock Origin

 ![Screenshot (238)](https://forum.torproject.org/uploads/default/original/2X/1/1892698134068bef94aec7b2294d8aa5aa5a4c64.png)  
Many Other sites were also visited . (including onion and non onion sites)

The Following were the Probable Issues Which i ran into while testing the alpha releases and the stable release . The images here showcase the log of Ublock origin , (not sure if they are actual issues to be concerned about ).

Issue : while having all java scripts blocked , u block origin still managed to block few external scripts on few of the websites i visited . The issue seems to only occur when attempting to visit surface web sites (non onion sites) (Particularly Search Engines). although it did in fact happened in a few Onion sites as well .

Question : Does this mean that Tor is Unable to block Scripts Completely when visiting sites ? Should the use of Ublock Origin be made permanent ? Can this be a vulnerability ?

Note :The Issue might not be related to the This Specific tor Version (considering the fact that similar results are found in stable tor release ) . Maybe , The Issue might have to do something with Ublock Origin or the sites that i visited (maybe) , I am just an Amateur .

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### Author: ![ebanam](https://forum.torproject.org/letter_avatar_proxy/v4/letter/e/eada6e/32.png) [@ebanam](https://forum.torproject.org/u/ebanam)
#### Post date: [May 29, 2025, 3:11pm UTC](https://forum.torproject.org/t/ublock-origin-integration-with-tor-browser/19078/2 "2025-05-29T15:11:58Z")

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Integration of uBlock Origin with Tor Browser is currently under investigation for browser fingerprinting concerns, etc. See, [uBlock Origin Integration Investigation (#43365) · Issues · The Tor Project / Applications / Tor Browser · GitLab](https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/43365)

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### Author: ![ioc2e31](https://forum.torproject.org/user_avatar/forum.torproject.org/ioc2e31/32/7274_2.png) [@ioc2e31](https://forum.torproject.org/u/ioc2e31)
#### Post date: [October 1, 2025, 11:10am UTC](https://forum.torproject.org/t/ublock-origin-integration-with-tor-browser/19078/3 "2025-10-01T11:10:13Z")

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If uBlock Origin and Tor Browser integration is successful …

That’s can block ads , on Tor Browser …

.