在Firefox Web扩展中使用数据库 [英] Use database in the Firefox web extension

问题描述

我想在Firefox Web扩展中使用某些数据库，我已经找到

I want to use some database in my Firefox web extension, I already found this, but it's just a storage for key-value pairs.

那么如何在Firefox Web扩展中使用数据库?

So how can I use database in the Firefox web extension?

推荐答案

您可以使用IndexedDB Web API:

You can use the IndexedDB Web API: https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API

有一个使用它的示例扩展 ，尽管它使用的是库.最好查看常规使用IndexedDB 例子.

There's a sample extension that uses it, though it's using a library. It might be better to look at general Using IndexedDB examples.

您可能想声明"unlimitedStorage"权限；在Chrome中，它取消了5MB的大小限制，而在Firefox中，它显然

You probably want to declare "unlimitedStorage" permission; in Chrome, it lifts the 5MB restriction on size, while on Firefox it apparently bypasses a user prompt.

请注意，IndexedDB是基于源的，因此您的内容脚本(从技术上来说，其来源是运行它们的页面)将无法直接访问它；您将需要依靠消息传递来让后台页面代理"访问.

Note that IndexedDB is per-origin, so your content scripts (whose origin is technically the page they are running in) won't be able to access it directly; you'll need to rely on Messaging to let the background page "proxy" the access.

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