I have downloaded iCyte – a tool for saving a whole webpage or its part.
ICyte can be used tiogether with Firefox and IE browsers and you can read info with other browsers ( I have used Chrome).
A short excerpt from the tool homepage
Cyte enables you to highlight and save text on any webpaeg, allowing you to recall the most relevant information. You can save sections of webpages or the whole thing.
Powerfull search tools
Webpages you Cite are saved forever on our server, letting you return to your research even if the webpage has been deleted or modified.
Simple user sharing
Invite colleagues and friends to join your projects, discover new research, and share information.”
I have tested it using a slow internet as I live now in the village. I could only access to it and save a few information pieces. But I did not tested a search and other features.