Subzillo version history - 14 versions
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 1.0.17
Released Sep 26, 2026 - 872.67 KBWorks with firefox 79.0 and later- Fixed SSO authentication synchronization and session persistence.
- Added custom session expiration modal and improved login session polling.
- Minor UI improvements and bug fixes.
Source code released under MIT License
Older versions
Version 1.0.16
Released Sep 18, 2026 - 832.31 KBWorks with firefox 79.0 and laterFixed an issue where the login progress was lost when the user closed the popup during the OTP verification stage.
Removed a third-party IP-based location request (ipapi.co) for country code detection to improve user privacy.Source code released under MIT License
Version 1.0.15
Released Sep 17, 2026 - 790.33 KBWorks with firefox 79.0 and laterVersion 1.0.15 Updates:
- Fixed a bug where the extension would incorrectly prompt the user to log in even when they were already authenticated in the main web application.
- Improved the silent background synchronization mechanism to ensure the extension perfectly mirrors the web app's authentication state.
- Enhanced token detection to support web sessions that utilize sessionStorage or cookies.
- Resolved a UI glitch that caused a blank screen or a flash of the login form when opening the extension popup.Source code released under MIT License
Version 1.0.14
Released Sep 17, 2026 - 747.6 KBWorks with firefox 79.0 and later- Resolved a critical UI issue where the extension popup would fail to reopen or render incorrectly after the first use.
- Improved overall extension stability and reliability.
Source code released under MIT License
Version 1.0.13
Released Sep 16, 2026 - 747.72 KBWorks with firefox 79.0 and laterVersion 1.0.13 finalizes the mitigation for a rare deadlock bug. We have successfully completed a full overhaul of our inter-process communication pipeline, redirecting 100% of all asynchronous storage requests securely to the background Service Worker thread to ensure maximum stability on all connection speeds.Source code released under MIT License
Version 1.0.12
Released Sep 16, 2026 - 705.02 KBWorks with firefox 79.0 and laterVersion 1.0.12 completes our architectural improvements to the background data synchronization system. We have definitively resolved all edge-case bugs that could cause the extension popup to become unresponsive when checking login status or updating cached subscriptions.Source code released under MIT License
Version 1.0.11
Released Sep 16, 2026 - 660.97 KBWorks with firefox 79.0 and laterVersion 1.0.11 includes architectural improvements to our background caching system and resolves a rare bug where the extension popup could become unresponsive on slower connections.Source code released under MIT License
Version 1.0.10
Released Sep 16, 2026 - 574.26 KBWorks with firefox 79.0 and later- Optimized performance for cross-tab session synchronization.
- Improved background service worker state management and timeouts.
- Removed external IP-based auto-location dependency for improved privacy and performance.
- Defaulted the country code selector to AED.
- Various under-the-hood stability improvements.
Source code released under MIT License
Version 1.0.9
Released Sep 16, 2026 - 531.75 KBWorks with firefox 79.0 and later- Resolved a critical bug that prevented the extension popup from opening.
- Improved background service worker stability.
- Minor UI improvements and version bump.
Source code released under MIT License
Version 1.0.8
Released Sep 15, 2026 - 531.75 KBWorks with firefox 79.0 and laterVersion 1.0.8 brings important UI enhancements and bug fixes:
- Redesigned the "Renewal Reminders" UI in the Add/Edit subscription forms, replacing checkboxes with a sleek interactive range slider.
- Fixed a bug where renewal reminder settings were not being correctly attached to the API payload during subscription edits.
- Added safeguards to prevent the accidental editing or bulk-deletion of the core Subzillo subscription.
- Minor UI alignment and dark-mode styling improvements.Source code released under MIT License
Version 1.0.7
Released Sep 3, 2026 - 479.61 KBWorks with firefox 79.0 and later- Version bump to 1.0.7
- Implemented a custom UI modal for handling 409 session expiration errors.
- Automatically clears the local session and gracefully reloads to the login screen when logged into another device.
- Fixed a bug where multiple simultaneous API errors caused overlapping error dialogs.
Source code released under MIT License
Version 1.0.6
Released Sep 2, 2026 - 439.56 KBWorks with firefox 79.0 and later- Redesigned the manual subscription entry form to be much more compact and easier to navigate on a single screen.
- Fixed an issue where the extension would sometimes require a full page refresh to detect a successful login.
- Added dynamic country-specific formatting for international phone numbers on the login screen.
- General UI and performance improvements.
Source code released under MIT License
Version 1.0.5
Released Aug 27, 2026 - 387.48 KBWorks with firefox 79.0 and laterMinor bug fixes and performance improvements.Source code released under MIT License
Version 1.0.4
Released Jul 30, 2026 - 305.68 KBWorks with firefox 79.0 and laterSource code released under MIT License