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Changing size on one tab has suddenly started changing the size on another tab for the same website

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If I have two (or more) tabs open for the same website and I want to resize/zoom something on one tab only, the other tab now also changes.

As an example, I will have the Guardian news site open with all sizes of text and graphics as I like them. If there is an article open for comments I open this in a second tab and, because the text of the comments is smaller, I increase the size on this tab.

Doing that made the text on the second tab a nice size for me but nothing on the first tab changed.

Since last night, every time I change the size/zoom on the second tab it now does the same thing on the first tab. I've done nothing different to this laptop nor firefox settings.

What's happened?

Chosen solution

Yes, that's how it works. This is not an issue.

If you want to change this behavior, enter about:config in the URL bar and set browser.zoom.siteSpecific = false.

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All Replies (3)

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Chosen Solution

Yes, that's how it works. This is not an issue.

If you want to change this behavior, enter about:config in the URL bar and set browser.zoom.siteSpecific = false.

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Thanks, but as I said, this was not the way it was working yesterday nor since Quantum.

Thanks for the suggestion...before I try it though, site specific?

That sounds like it would simply do the same on the guardian site unless it really changes url specific, if you see what I mean.

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Tried it and it now behaves like yesterday, thanks.