Adds a grey background to SVG files, centers them and adjusts them to page width, just like normal images.

What is CenterSVG?
CenterSVG is a Firefox add-on that applies the styles of normal images to SVG files, allowing them to have a gray background, be centered, and adjusted to page width. Please note that SVG files with transform properties may not display correctly.
By: tobbi
Users: 237 ▼ -3
Rating: 3.75 (8)
Version: 1.0 (Last updated: 2017-10-15)
Creation date: 2013-02-10
Weekly download count: 3
Firefox on Android: Yes
Risk impact: Moderate risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
  • storage
Size: 9.47K
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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This add-on makes Firefox center SVG images and apply the styles normal images have as well.


  • SVG files with transform properties will not display correctly. I don't know whether there's a workaround for this issue.
  • You can disable the background in the add-on options
User reviews

It centers, but does not resize. Both when set to a specific percentage or left on automatic the SVG never changes from 100% zoom. Additionally, because of being centered if you zoom manually the SVG will go off the edge of the screen and the user is not able to scroll far enough to see the entire graphic as firefox doesn't handle it like a normal image.
by pedz, 2019-04-20

Can't use local files.
View all user reviews
Risk impact

CenterSVG may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.

Risk likelihood

CenterSVG has earned a fairly good reputation and likely can be trusted.

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