Sync Stylish styles across Chrome and Firefox

Question

Is there a way I can set the path of the Stylish addon for .sqlite file for Firefox and Chrome to the same location? In Firefox I know it's in the extensions.stylish.dbFile config, but I have no idea where it is in Chrome. My goal is to use the same styles for both Firefox and Chrome.

Answer 1

According to this it is not possible.

http://forum.userstyles.org/discussion/31168/where-are-user-styles-stored-on-chrome

A hard link would do the trick, but the databases have different structures in Firefox and Chrome, so it will do you no good.

Answer 2

For Google chrome/Vivaldi/Chromium-based browsers

• the file you need to back up it located at $HOME/Library/Application Support/Google/XXXXXX/IndexDB/chrome-extension_fjnbnpbmkenffdnngjfgmeleoegfcffe_0.indexeddb.leveldb/000003.log
  • for Google Chrome, XXXXXX is Google/Chrome
  • for Vivaldi, XXXXXX is Vivaldi
• by studying the extension code, Extensions/fjnbnpbmkenffdnngjfgmeleoegfcffe/1.5.2_0/storage-websql.js has a property getDatabase which defines the database used for styles storage.
• the database is located at databases/chrome-extension_fjnbnpbmkenffdnngjfgmeleoegfcffe_0/[0-9]+, but the SQLite DB file contains a table, __WebKitDatabaseInfoTable__, which has a field WebKitDatabaseVersionKey which is null. This means the bd file is useless and the data is not stored in it.

how to backup and restore

• you can write a shell script to automatically do this for you daily or weekly.
• just zip the chrome-extension_fjnbnpbmkenffdnngjfgmeleoegfcffe_0.indexeddb.leveldb folder using 7z or tar and copy the zip file to icloud or dropbox.

check here, I have comments in this topic.

For firefox

• I actually use the userContent.css, which is located at /Users/ruili/Library/Application\ Support/Firefox/Profiles/wbcdxsme.default/chrome/userContent.css. [if not existed, just create it]
• the syntax is specified here

CSS @-moz-document domain(www.hao123.com) { } @-moz-document url(http://www.example.com/test.html) { } @-moz-document url-prefix("http://www.example.com"){ } @-moz-document regexp('http://www\\.example\\.(com|de)/images/.*') { }