Osprey: Browser Protection version history - 25 versions
Osprey: Browser Protection by Foulest
Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 1.4.8
Released Mar 10, 2026 - 191.69 KBWorks with firefox 140.0 and later, android 142.0 and later- Removed Seclookup and DNS4EU from protection providers
- AlphaMountain and PrecisionSec now run through our proxy server
- All exposed API keys have been hidden and rerolled
- Improved cancellation logic of background requests
- Fixed oversight with domains with underscores
- Fixed issue with old Firefox versions not working
- Cleaned up code
Seclookup was removed for having restrictive API limits.
DNS4EU was removed for not responding to false positive reports.Source code released under GNU General Public License v3.0 only
Older versions
Version 1.4.7
Released Feb 26, 2026 - 195.58 KBWorks with firefox 142.0 and later- Added Seclookup Web Protection to list of providers
- Fixed typo in Switch.ch false positive reporting form
- Improved code security across entire codebase
- Localized previously missed notification text
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.4.6
Released Feb 5, 2026 - 186.28 KBWorks with firefox 109.0 and later- 'Back to safety' now takes you to Google on Firefox instead of killing the tab
- Added Switch.ch Security DNS back to the Protection Options
- Restored functionality to CERT-EE Security DNS
- Removed 'Drugs & Substances' alphaMountain category
- Added extension name and description translations
- Improved DNS request handling & response times
- Modified default settings
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.4.5
Released Jan 14, 2026 - 175.13 KBWorks with firefox 109.0 and later- Fixed issues with blocked/reported by text
- Fixed browser variable issues
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.4.4
Released Jan 6, 2026 - 176.59 KBWorks with firefox 109.0 and later- Added 'Report website as malicious' context menu button
- Fixed server redirect issue
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.4.3
Released Dec 3, 2025 - 174.46 KBWorks with firefox 109.0 and later- Increased default cache expiration time from 24 hours to 7 days
- Updated alphaMountain API handling and logic
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.4.2
Released Oct 26, 2025 - 185.78 KBWorks with firefox 109.0 and later- Relegated Control D to a standard provider
- Removed DNS0.eu from Osprey (they no longer exist)
- Modified alphaMountain's configuration
- Improved IPv6 support
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.4.1
Released Sep 10, 2025 - 185.19 KBWorks with firefox 109.0 and later- Reported by list now stays on refresh
- Fixed issues with blob: URLs
- Fixed issues with IPv6 URLs
- Fixed issues with DNS query encoding
- Fixed potential security issues
- Improved validation across entire project
- Improved URL canonicalization for privacy
- Improved content security policy
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.4.0
Released Sep 3, 2025 - 182.1 KBWorks with firefox 109.0 and later- Removed Norton Safe Web per request
- Removed obsolete icon files
- Updated DNS4EU contact info
Source code released under GNU General Public License v3.0 only
Version 1.3.9
Released Aug 30, 2025 - 186.17 KBWorks with firefox 109.0 and later- Optimized translation calls
- Optimized browser API calls
- Optimized variable caching
- Fixed issues with notification text
- Fixed issues with storage util
- Fixed issues with regex safety
- Fixed issues with origin numbers
- Updated Croatian translations
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.3.8
Released Aug 24, 2025 - 184.25 KBWorks with firefox 109.0 and later- Added native support for over 80 languages
- Changed DNS4EU support contact
- Minor formatting changes
- Restructured codebase
Source code released under GNU General Public License v3.0 only
Version 1.3.7
Released Aug 21, 2025 - 73.35 KBWorks with firefox 109.0 and later- Temporarily removed Microsoft SmartScreen
- Fixed issues with processing cache
- Fixed issues with underscores in domains
- Fixed issues with lookups being cancelled
- Fixed formatting issues
Source code released under GNU General Public License v3.0 only
Version 1.3.6
Released Aug 18, 2025 - 77.8 KBWorks with firefox 109.0 and later- Removed G DATA API from project per request
- Improved URL processing before requests
- Improved ignoring sites with new global allowed cache
- Added RegEx support to global allowed cache
- Modified order of protection providers
- Reduced hardcoded/magic values across codebase
- Cleaned up code with improved standards
Source code released under GNU General Public License v3.0 only
Version 1.3.5
Released Aug 2, 2025 - 80.14 KBWorks with firefox 109.0 and later- Updated Privacy Policy with expanded language
- Enabled DNS0.eu Security DNS by default
- Removed OpenDNS protections due to lack of support for false positives
- Removed CIRA DNS protections due to low-quality network locations and lack of support for false positives
- Removed Switch.ch protections due to low-quality network locations, redundancy with Quad9, and lack of support for false positives
- Merged the two CleanBrowsing adult content filters into one
- Disabled G DATA and Microsoft SmartScreen by default as a precaution
- Changed DNS0.eu from DNS0.eu ZERO to regular servers to reduce false positives
- Renamed all adult content filters for parity across the extension
- Added link to privacy policy to protection options panel
- Added logo descriptions on hover to the protection options panel for accessibility
- Revised email support messages for reporting false positives
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.3.4
Released Jul 30, 2025 - 85.56 KBWorks with firefox 109.0 and later- Disabled CERT-EE by default due to false positives
- Disabled Control D by default due to response times
- Updated support contact info
- Optimized image file sizes
- Adjusted Control D URLs
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.3.3
Released Jul 24, 2025 - 85.87 KBWorks with firefox 109.0 and later- Disabled OpenDNS Security DNS by default
- Changed OpenDNS's false positive support email
- Added missing SmartScreen threat categories
- Reduced false positives with alphaMountain
- Fixed issues with warning page
- Fixed issues with popup page
- Fixed issues with blocked cache
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.3.2
Released Jul 15, 2025 - 86.55 KBWorks with firefox 109.0 and later- Allow site button now permanently adds to allowed cache
- Fixed blocked cache integration with alphaMountain
- Disabled Norton Safe Web by default due to false positives
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.3.1
Released Jul 5, 2025 - 85.71 KBWorks with firefox 109.0 and later- Added copyright notice headers to the codebase
- Improved alphaMountain service configuration
- Improved local IP detection and suffix handling
- Improved error protections across the codebase
- Fixed context menu parity after restoring defaults
- Fixed continue URLs for detected frame navigations
- Fixed issues with certain policies not working
- Improved JSHint compliance
- Cleaned up codebase
Source code released under GNU General Public License v3.0 only
Version 1.3.0
Released Jun 27, 2025 - 76.78 KBWorks with firefox 109.0 and later- Fixed caching issue with alphaMountain
- Added Suspicious category to alphaMountain's Untrusted check
- Fixed undefined processing cache issue
- Fixed result system names undefined issue
Source code released under GNU General Public License v3.0 only
Version 1.2.9
Released Jun 25, 2025 - 76.67 KBWorks with firefox 109.0 and later- Added alphaMountain Web Protection as an Official Partner
- Added context menu option to restore default settings
- Changed partner design aspects on popup page
- Fixed issues with result count provider display on hover
- Added secret sniffing protections for API keys
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.2.8
Released Jun 17, 2025 - 74.22 KBWorks with firefox 109.0 and later- Removed Bitdefender TrafficLight from protection providers
- Reported by text now displays list of providers on hover
- Turned Switch.ch Security DNS off by default
- Turned OpenDNS Security DNS on by default
- Fixed issue with block counter number
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.2.7
Released Jun 14, 2025 - 76.06 KBWorks with firefox 109.0 and later- Added custom logos to each protection provider
- Added HideProtectionOptions policy to hide the panel
- Revised approach for displaying Official Partners
- Added policy protections for important default settings
- Added new blocked cache to reduce network requests
- Block page and icon now show total blocks for all providers
- Renamed Restricted classification to Adult Content
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.2.6
Released Jun 9, 2025 - 57.4 KBWorks with firefox 109.0 and later- Added AdGuard DNS as an Official Partner
- Added Control D as an Official Partner
- Added DNS4EU Security DNS to protection options
- Added DNS4EU Family DNS to protection options
- Fixed issue with CIRA's report page URL
- Cleaned up code
Source code released under GNU General Public License v3.0 only
Version 1.2.5
Released Jun 5, 2025 - 56.59 KBWorks with firefox 109.0 and later- Corrected internal order of protection providers
- Removed onCreatedNavigationTarget event
Source code released under GNU General Public License v3.0 only
Version 1.2.4
Released Jun 5, 2025 - 56.6 KBWorks with firefox 109.0 and later- Removed Emsisoft Web Protection from protection options
- Removed Emsisoft utility and hashing classes
- Fixed issue with DNS0.eu Security DNS's origin number
Source code released under GNU General Public License v3.0 only