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diff --git a/docs/faq.md b/docs/faq.md new file mode 100644 index 00000000..a972b0b9 --- /dev/null +++ b/docs/faq.md @@ -0,0 +1,58 @@ +## Frequently Asked Questions + +**I can't scan text in Firefox!** + +In Firefox's Manifest V3, host permissions are treated as opt-in. For Yomitan to work properly, the recommended permissions +must be explicitly set. In the Yomitan welcome page, go to the `Recommended Permissions (Important)` section and check `Enable recommended permissions`. + +**I'm having problems importing dictionaries in Firefox, what do I do?** + +Yomitan uses the cross-browser IndexedDB system for storing imported dictionary data into your user profile. Although +everything "just works" in Chrome, depending on settings, Firefox users can run into problems due to browser bugs. +Yomitan catches errors and tries to offer suggestions about how to work around Firefox issues, but in general at least +one of the following solutions should work for you: + +- Make sure you have cookies enabled. It appears that disabling them also disables IndexedDB for some reason. You + can still have cookies be disabled on other sites; just make sure to add the Yomitan extension to the whitelist of + whatever tool you are using to restrict cookies. You can get the extension "URL" by looking at the address bar when + you have the search page open. +- Make sure that you have sufficient disk space available on the drive Firefox uses to store your user profile. + Firefox limits the amount of space that can be used by IndexedDB to a small fraction of the disk space actually + available on your computer. +- Make sure that you have history set to "Remember history" enabled in your privacy settings. When this option is + set to "Never remember history", IndexedDB access is once again disabled for an inexplicable reason. +- As a last resort, try using the [Refresh Firefox](https://support.mozilla.org/en-US/kb/reset-preferences-fix-problems) + feature to reset your user profile. It appears that the Firefox profile system can corrupt itself preventing + IndexedDB from being accessible to Yomitan. + +**Will you add support for online dictionaries?** + +Online dictionaries will not be implemented because it is not possible to support them in a robust way. In order to +perform Japanese deinflection, Yomitan must execute dozens of database queries for every single word. Factoring in +network latency and the fragility of web scraping, it would not be possible to maintain a good and consistent user +experience. + +**Is it possible to use Yomitan with files saved locally on my computer with Chrome?** + +In order to use Yomitan with local files in Chrome, you must first tick the _Allow access to file URLs_ checkbox +for Yomitan on the extensions page. Due to the restrictions placed on browser addons in the WebExtensions model, it +will likely never be possible to use Yomitan with PDF files. + +**Is it possible to delete individual dictionaries without purging the database?** + +Yomitan is able to delete individual dictionaries, but keep in mind that this process can be _very_ slow and can +cause the browser to become unresponsive. The time it takes to delete a single dictionary can sometimes be roughly +the same as the time it originally took to import, which can be significant for certain large dictionaries. + +**Why aren't EPWING dictionaries bundled with Yomitan?** + +The vast majority of EPWING dictionaries are proprietary, so they are unfortunately not able to be included in +this extension due to copyright reasons. + +**When are you going to add support for $MYLANGUAGE?** + +Developing Yomitan requires a decent understanding of Japanese sentence structure and grammar, and other languages +are likely to have their own unique set of rules for syntax, grammar, inflection, and so on. Supporting additional +languages would not only require many additional changes to the codebase, it would also incur significant maintenance +overhead and knowledge demands for the developers. Therefore, suggestions and contributions for supporting +new languages will be declined, allowing Yomitan's focus to remain Japanese-centric. |