Rated 1 out of 5 stars
Can't edit any overwritten setting by this plugin, if you want to enable indexeddb back in about:config it just resets to the addons settings on restart, and keeps your twitter crashed. Also disabling the addon resets everything back to defaults. Like someone said, just Google each setting and set it manually to your needs.
Rated 5 out of 5 stars
A very useful add-on and it works with Seamonkey too.
Rated 3 out of 5 stars
Don't really need this, simply change the settings in about:config.
Twitter uses indexedDB(local storage), so don't disable it if you want to use twitter.
Would be helpful to explain what each setting is and they're used for. Otherwise, users don't know what they're doing to their browser.