Mozilla 1.1 and earlier, and Mozilla-based browsers such as Netscape and Galeon, set the document referrer too quickly in certain situations when a new page is being loaded, which allows web pages to determine the next page that is being visited, including manually entered URLs, using the onunload handler.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Galeon_browser | Galeon | 1.2.4 (including) | 1.2.4 (including) |
| Galeon_browser | Galeon | 1.2.5 (including) | 1.2.5 (including) |
| Galeon_browser | Galeon | 1.2.6 (including) | 1.2.6 (including) |
| Mozilla | Mozilla | 0.9.3 (including) | 0.9.3 (including) |
| Mozilla | Mozilla | 0.9.4 (including) | 0.9.4 (including) |
| Mozilla | Mozilla | 0.9.5 (including) | 0.9.5 (including) |
| Mozilla | Mozilla | 0.9.6 (including) | 0.9.6 (including) |
| Mozilla | Mozilla | 0.9.7 (including) | 0.9.7 (including) |
| Mozilla | Mozilla | 0.9.8 (including) | 0.9.8 (including) |
| Mozilla | Mozilla | 0.9.9 (including) | 0.9.9 (including) |
| Mozilla | Mozilla | 1.0.1 (including) | 1.0.1 (including) |
| Mozilla | Mozilla | 1.1 (including) | 1.1 (including) |
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | RedHat | * | |
| Red Hat Linux 7.2 | RedHat | * | |
| Red Hat Linux 7.3 | RedHat | * | |
| Red Hat Linux 8.0 | RedHat | * |