tabs

Every time I open Firefox it automatically opens a new tab with tiles on it. Searching online it says I can stop this new tab opening by clicking the button on the top right of the screen to disable it, however the said button is not there. Any ideas chaps?

Any idea how to stop Chrome pinning tabs that open every time you re-start Chrome please? Thanks

Does anyone know if there's a way to "tile" the Tabs on large multi sheet excel spreadsheets? It's a bit irksome when working with a spreadsheet with say 12 sheets or tabs and you have to jockey the toolbar at the bottom left or right every time: It wold be handy to put the tabs on more...