Title: Firefox problem
Last modified: August 26, 2020

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# Firefox problem

 *  Resolved [createpop](https://wordpress.org/support/users/createpop/)
 * (@createpop)
 * [5 years, 8 months ago](https://wordpress.org/support/topic/firefox-problem-15/)
 * Hi,
 * I recently found the Firefox(79〜80) cannot read some of the images, such as 
   height600 * width500, height700 * width600, etc. If I change the width is less
   than 400px, it works on Firefox. Removing of ShortPixle plugin, that works. What’s
   wrong?
 * Thank you,

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Thread Starter [createpop](https://wordpress.org/support/users/createpop/)
 * (@createpop)
 * [5 years, 8 months ago](https://wordpress.org/support/topic/firefox-problem-15/#post-13320020)
 * Besides, if the webp function is off, the portrait image is shown.
    Uhhhm…
 *  [Gerard Blanco](https://wordpress.org/support/users/sixaxis/)
 * (@sixaxis)
 * [5 years, 8 months ago](https://wordpress.org/support/topic/firefox-problem-15/#post-13320676)
 * Hi there,
 * I’m sorry, but I don’t understand what you mean. Can you share some screenshot
   or elaborate on that?
 * Thank you,
 *  Thread Starter [createpop](https://wordpress.org/support/users/createpop/)
 * (@createpop)
 * [5 years, 8 months ago](https://wordpress.org/support/topic/firefox-problem-15/#post-13321209)
 * Hi Gerad,
 * Thank you for your reply.
    I reinstalled WP, then I uploaded new images. Finally,
   the portrait size’s images are shown on Firefox.
 * Thank you,
 *  [Gerard Blanco](https://wordpress.org/support/users/sixaxis/)
 * (@sixaxis)
 * [5 years, 8 months ago](https://wordpress.org/support/topic/firefox-problem-15/#post-13323668)
 * You are welcome 🙂

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Firefox problem’ is closed to new replies.

 * ![](https://ps.w.org/shortpixel-image-optimiser/assets/icon-256x256.gif?rev=3245715)
 * [ShortPixel Image Optimizer - Optimize Images, Convert WebP & AVIF](https://wordpress.org/plugins/shortpixel-image-optimiser/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/shortpixel-image-optimiser/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/shortpixel-image-optimiser/)
 * [Active Topics](https://wordpress.org/support/plugin/shortpixel-image-optimiser/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/shortpixel-image-optimiser/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/shortpixel-image-optimiser/reviews/)

## Tags

 * [Firefox](https://wordpress.org/support/topic-tag/firefox/)

 * 4 replies
 * 2 participants
 * Last reply from: [Gerard Blanco](https://wordpress.org/support/users/sixaxis/)
 * Last activity: [5 years, 8 months ago](https://wordpress.org/support/topic/firefox-problem-15/#post-13323668)
 * Status: resolved