Controlling actions for browser extensions

A system, comprising:

• memory configured to store executable instructions;
• at least one processor that is operably coupled to the memory and that is configured to execute the stored instructions to implement a browser process module and a renderer process module, wherein:
• the browser process module is configured to register a first browser extension for blocking content from a webpage and one or more rules defined by the first browser extension for when to block the content from the webpage, the webpage being separate from the first browser extension, wherein:
• the browser process module is a process module to register multiple browser extensions and to control access by other process modules, including the renderer process module, to resources of the computing device, using rule-based security policies,
• the first browser extension is prevented from accessing the content from the webpage,
• the rules include one or more conditions and one or more actions that correspond to the one or more conditions that are applied during a webpage rendering process, the rules defining the one or more conditions to apply to the webpage and the one or more corresponding actions to take when one or more of the conditions are satisfied, and
• at least one of the conditions includes matching at least a portion of a predefined uniform resource locator (URL) to at least a portion of a URL of the webpage;
• the renderer process module is operably coupled to the browser process module, wherein the renderer process module is a different process module than the browser process module and the renderer process module is configured to:
• apply the one or more conditions to the content of the webpage while preventing access to the content by the first browser extension and the browser process module, and
• determine whether any of the one or more conditions are satisfied by the content of the webpage, wherein
• in response to at least one of the conditions defined in the rules being satisfied, the browser process module or the renderer process module is configured to perform the one or more actions corresponding to the at least one satisfied condition defined in the rules, and
• at least one of the corresponding actions includes blocking at least a portion of the content of the webpage from being displayed.

A non-transitory computer readable medium containing instructions that when executed by a microprocessor of a computer cause the computer to:

• register, at a browser process module on a computing device, a first browser extension for blocking content from a webpage and one or more rules defined by the first browser extension for when to block the content from the webpage, the webpage being separate from the first browser extension, wherein:
• the browser process module is a process module to register multiple browser extensions and to control access by other process modules, including a renderer process module, to resources of the computing device, using rule-based security policies,
• the first browser extension is prevented from accessing the content from the webpage,
• the rules include one or more conditions and one or more actions that correspond to the one or more conditions that are applied during a webpage rendering process, the rules defining the one or more conditions to apply to the webpage and the one or more corresponding actions to take when one or more of the conditions are satisfied, and
• at least one of the conditions includes matching at least a portion of a predefined uniform resource locator (URL) to at least a portion of a URL of the webpage;
• apply, by the renderer process module that is in communication with the browser process module, the one or more conditions to the content of the webpage while preventing access to the content by the first browser extension and the browser process module, wherein the renderer process module is a different process module than the browser process module;
• determine, by the renderer process module, whether any of the one or more conditions are satisfied by the content of the webpage;
• and
• in response to at least one of the conditions defined in the rules being satisfied, perform, by the browser process module or the renderer process module, the one or more actions corresponding to the at least one satisfied condition defined in the rules, wherein:
• at least one of the corresponding actions includes blocking at least a portion of the content of the webpage from being displayed.