| Index: lib/cssInjection.js | 
| =================================================================== | 
| --- a/lib/cssInjection.js | 
| +++ b/lib/cssInjection.js | 
| @@ -22,22 +22,22 @@ | 
| const {RegExpFilter} = require("filterClasses"); | 
| const {ElemHide} = require("elemHide"); | 
| const {ElemHideEmulation} = require("elemHideEmulation"); | 
| const {checkWhitelisted} = require("whitelisting"); | 
| const {extractHostFromFrame} = require("url"); | 
| const {port} = require("messaging"); | 
| const devtools = require("devtools"); | 
|  | 
| -const userStyleSheetsSupported = "extensionTypes" in chrome && | 
| -                                 "CSSOrigin" in chrome.extensionTypes; | 
| +const userStyleSheetsSupported = "extensionTypes" in browser && | 
| +                                 "CSSOrigin" in browser.extensionTypes; | 
|  | 
| function hideElements(tabId, frameId, selectors) | 
| { | 
| -  chrome.tabs.insertCSS(tabId, { | 
| +  browser.tabs.insertCSS(tabId, { | 
| code: selectors.join(", ") + "{display: none !important;}", | 
| cssOrigin: "user", | 
| frameId, | 
| matchAboutBlank: true, | 
| runAt: "document_start" | 
| }); | 
| } | 
|  | 
|  |