1.5

new features:

- added {empty}, {false} and {undefined} to webGL preference parameters (i.e. VENDOR, RENDERER, UNMASKED_VENDOR_WEBGL and UNMASKED_RENDERER_WEBGL)
- added {disabled} to UNMASKED_VENDOR_WEBGL and UNMASKED_RENDERER_WEBGL to disabled the WEBGL_debug_renderer_info extension
- improved performance for protected canvas part "input"

fixes:

- protection of DOM manipulations on unloaded windows may break websites

known issues:

- if a data URL is blocked the page action button does not appear