# Known limitations (browser extension)

We list surprising, non-obvious issues and possible privacy shortcomings in version 2.0.1 of Haketilo browser extension. For a list of Haketilo proxy's limitations, see [[Known limitations|here]].

* Currently, user scripts can only be injected to HTML pages.
* Currently, user scripts under Mozilla-based browsers may fail to run on pages loaded from `file://` schema if a CSP rule is embedded in a `<meta>` tag early in page's HTML.
* On some (Mozilla-based) browsers Haketilo might disrupt XML preview.
* Haketilo doesn't have additional features one could expect from a content blocker:
  * There is currently no option to disable Service Workers while allowing normal scripts to execute.
  * There is currently no option to disable loading of external/third-party fonts, tracking pixels or other strategies that are used by Google and similar companies to snoop on internet users.
* There is currently no facility to anonymize queries Haketilo makes to its script repositories. This means admin of a [[Hydrilla:Wiki|Hydrilla]] instance could theoretically see the sites for which a Haketilo user tried to find custom scripts.
* Haketilo is still missing:
  * UI Translations
  * Accessiblity features
  * Mobile support
* Pages that were open during Haketilo's installation/enabling might break in weird ways (under Mozilla browsers) and Haketilo will not function there properly (all browsers). Reloading each browser tab is the simplest solution to this issue.
* There are almost certainly other bugs.