StackOverflow&Co. : 'Create a custom filter' Button Augmentation

Augment Stack Overflow’s “Create a custom filter” button to work even when a filter is already applied. On some pages with an active custom filter, the “Create a custom filter” button looks clickable but does nothing. This extension patches that specific case so the filter editor opens as expected—usually without a full page reload. --- What it does: Detects the broken state when a filter is already applied. Cleans the URL and invokes the proper action to open the custom filter editor. --- Why you might want it: Saves time when customizing search results. Minimal, targeted fix—no UI, no clutter. --- Scope & compatibility: Runs ONLY on stackoverflow.com and subdomains (e.g., meta.stackoverflow.com). Not affiliated with Stack Overflow or Stack Exchange. --- Privacy & permissions: No data collection. No extra permissions beyond injecting a content script on Stack Overflow pages. --- Troubleshooting: Ensure the extension is enabled and you’re on a page with an active filter. If you’re using Teams or other Stack Exchange sites, make sure those domains are included in your extension’s match list. Hard-reload the page after installing or updating. --- Support: Found an edge case? Please open an issue with the page URL and steps to reproduce.