Page 0 of 15 for most used Firefox add-on in the Seasonal category in Firefox Browser Add-ons

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Add-ons (also known as extensions) are small programs that run inside web browsers like Mozilla Firefox. They add extra features to the browser without having to download anything new. You can use extensions to make browsing faster, easier, and safer. Some extensions even let you do things like translate text on websites, search the web, and play games.

There are over 28,000 Firefox-addons and 480,000 themes, making it hard to find the best ones. so we have created a way to sort through all of them. Use the dropdown above to set different filters. Add-ons are sorted by number of active users.

To set even more advanced filters, and sort the Firefox add-ons differently, please visit our Advanced search tool. Note that Advanced search tool is only available to premium members.

#1, Dark

if_tea

Beautiful dark theme for your beloved browser.

4.89 (19)

2,786

#2, delicate flower

rositza

Lily of the valley and dancing butterflies.

4.63 (54)

1,995

#3, Beautiful GX Fantasy

GODIE

Tema al nuevo estilo GX para Firefox. Contiene Transparencias

4.84 (38)

1,435

#4, Autumn Morning Serenity by MaDonna FT

MaDonna

🦊Designed by MaD♥nna🦊

4.69 (278)

1,187

#5, Cherry Blossom Spring by MaDonna

MaDonna

🦊 Designed by MaDonna 🦊 My wallpaper to match is at: http://nature.desktopnexus.com/wallpaper/1675891/

4.77 (69)

1,089

#6, Blue Winter Snow

KarenBeth

Blue Winter Snow Flake

4.85 (40)

945

#7, Country Home Winter by M♥Donna

MaDonna

🦊 Designed by MaDonna 🦊 Country winter home welcomes you on this cold winter day

4.60 (103)

905

#8, Autumn Bike Ride by MaDonna

MaDonna

🦊Designed by MaDonna🦊 My wallpaper to match is at: http://nature.desktopnexus.com/wallpaper/2026329/

4.81 (48)

870

#9, Fall Painting by MaDonna

MaDonna

🦊 Theme Designed by MaD♥nna 🦊

4.70 (202)

760

#10, Blue Blue Christmas by MaDonna

MaDonna

❄ Designed by MaDonna ❄

4.69 (39)

756

#11, Spring is in the air flowers

KarenBeth

Spring Flowers

4.83 (12)

734

#12, owl first snow by candelora

candelora

⭐️ Theme Designed by candelora © ⭐️ Copyright Original Picture by LiaSelina a.k.a. linmida

4.59 (104)

725

#13, Blue Halloween Night by candelora

candelora

🦊 Theme Designed by candelora © 🦊

4.96 (25)

696

#14, spring

jarroux

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4.60 (53)

690

#15, All Fall by MaDonna

MaDonna

🦊Designed by MaDonna🦊

4.71 (147)

682

#16, Beautiful Purple Sky

GODIE

Tema al nuevo estilo GX para Firefox. Contiene Css Personalizado.

5.00 (7)

676

#17, Summer Beach Background

timothy

Summer Beach Background

4.59 (17)

640

#18, really cute bird

rositza

A bird on an evergreen twig...

4.80 (90)

596

#19, Autumn Woods by MaDonna

MaDonna

🦊 Designed by MaDonna 🦊

4.83 (23)

574

#20, A Winter Scene

Tray

undefined

4.73 (41)

573

#21, Snoopy Ocean Surf

Leigh Anne

Snoopy and Woodstock surfing on a summer day.

4.88 (25)

553

#22, Spring is near

rositza

undefined

5.00 (13)

467

#23, тема пролет

rositza

Spring theme with flowering twigs

4.48 (58)

451

#24, Winter in the Hills by MaDonna

MaDonna

🦊 Designed by MaDonna 🦊

4.77 (35)

436

#25, Sparkle Snowflake Blue by MaDonna

MaDonna

❄❄ Designed by MaDonna❄❄

4.66 (148)

431