Thumbnail Zoom Plus
Legacy Firefox thumbnail hover preview
Zoom is a free browser extension for adjusting webpage zoom levels with a slider, buttons, saved site values, context-menu controls, mouse-wheel options, and an optional magnifier. Its alternatives fall into three groups: page zoom, text resizing, and image preview or original-image discovery.
Legacy Firefox thumbnail hover preview
Image and video preview on mouse hover
Per-site custom zoom levels and page position settings
Find larger or original image and video URLs
Advanced full-page and text-only zoom controls
This page is about Stefan vd’s Zoom browser extension, not the Zoom meeting platform. The extension helps users adjust page zoom with a toolbar popup, slider, buttons, context menu, saved zoom values, mouse-wheel controls, and optional magnifying features. Alternatives should be compared by the exact problem they solve: full-page zoom, text-only resizing, per-site zoom rules, image hover previews, or opening larger source images. Because browser extensions can request broad page access, users should check official store listings, recent updates, permissions, privacy notes, and developer identity before installing.
Zoom is a browser extension by Stefan vd for changing the zoom level of web pages. It provides a toolbar button, slider, plus and minus controls, saved zoom values, context-menu options, mouse-wheel zoom settings, and an optional magnifying-glass tool for closer reading.
Users may compare alternatives if they need text-only zoom, fit-to-width behavior, Firefox-specific controls, image hover previews, original-image discovery, fewer permissions, a more actively maintained add-on, or a built-in browser setting instead of another extension.
The official site and store listings describe Zoom as free and open source. Always verify current store availability, license, and donation or paid options before publishing exact claims.
Install only from official browser stores or trusted project pages. Review permissions carefully, especially extensions that can access data on all websites.
Last updated: 2026-07-01
Source review records support this guide. Features, pricing, platform support, and availability can still change after publication.
Compare the product information currently available, then confirm current features, plans, and availability with each provider.
| Tool | Best for | License | Platforms | Pricing note | Official site |
|---|---|---|---|---|---|
| Imagus | Hover to preview larger images and linked media | Free | Firefox, Firefox for Android | No paid pricing was found on the Mozilla listing; verify current store details before publishing. | Official site for Imagus |
| Thumbnail Zoom Plus | Legacy Firefox thumbnail hover preview | Free, Open Source | Firefox | No current paid pricing was found; treat as legacy software. | Official site for Thumbnail Zoom Plus |
| Hover Zoom | Not specified | Free | Windows, macOS, Linux, Chrome | Check current pricing | Official site for Hover Zoom |
| ezLinkPreview | Legacy link and image preview popup | Not verified | Chrome | No reliable current pricing page was found. | Official site for ezLinkPreview |
| Image Preview for Chrome | Image preview on hover or link inspection | Not verified | Chrome | Pricing and current availability could not be verified from an official listing. | Official site for Image Preview for Chrome |
| ImagePreviewer | Unverified image preview extension | Not verified | Web | No official pricing or active store listing was confidently verified. | Official site for ImagePreviewer |
| Hover Zoom+ | Image and video preview on mouse hover | Free, Open Source | Chrome, Firefox | The store listings describe it as free; verify current browser-store details before publishing. | Official site for Hover Zoom+ |
| ImgTip | Legacy image hover preview | Not verified | Web, Opera | No reliable current pricing or official listing was found. | Official site for ImgTip |
| Image Preview for Firefox | Unverified Firefox image preview add-on | Not verified | Firefox | Current pricing and availability could not be verified. | Official site for Image Preview for Firefox |
| ImageZoomer | Legacy or unverified image zoom extension | Not verified | Chrome | No official current pricing or availability was found. | Official site for ImageZoomer |
| Thumbnail Zoom | Legacy thumbnail hover image preview | Free | Firefox | No current paid pricing was found; appears legacy. | Official site for Thumbnail Zoom |
| Custom Page Zoom | Per-site custom zoom levels and page position settings | Free | Chrome, Firefox | No paid pricing was found on the official page or store listing reviewed. | Official site for Custom Page Zoom |
Options carrying a Free, Freemium, or Open Source label on this page include Imagus, Thumbnail Zoom Plus, Hover Zoom, Hover Zoom+, Thumbnail Zoom. Free access, usage limits, commercial-use terms, and paid features can change, so confirm current details with each provider.
Best for: Hover to preview larger images and linked media
Imagus is an image and media preview extension that enlarges images or shows linked media when the user hovers over supported content. It is relevant only when the comparison is about image magnification, not full-page zoom. The original Firefox listing remains available, while Chrome support should be reviewed carefully because newer community forks now exist.
Pricing: No paid pricing was found on the Mozilla listing; verify current store details before publishing.
Best for: Legacy Firefox thumbnail hover preview
Thumbnail Zoom Plus was a Firefox add-on for showing full-size image popups when hovering over thumbnails or image links. It appears to be a legacy option rather than a modern Trello-style active alternative, because the official project site announced that it would stop working with Firefox 57 and later.
Pricing: No current paid pricing was found; treat as legacy software.
Hover Zoom gives users another legitimate option to compare with Zoom. It may fit better when your priorities involve message organization, meeting needs, notifications, admin controls, and team adoption, but current product details should always be verified from official sources.
Best for: Legacy link and image preview popup
ezLinkPreview was a link and image preview extension for browsing links without opening each page in a new tab. Current active store availability could not be confidently verified, and third-party listings indicate that at least one ezLinkPreview extension was removed from the Chrome Web Store in 2021.
Pricing: No reliable current pricing page was found.
Best for: Image preview on hover or link inspection
The exact Chrome extension behind this listing could not be confidently matched to a current official product. If the intended item is an image-hover preview tool, it should be compared around popup behavior, host permissions, supported sites, update status, and whether it is still listed in the Chrome Web Store.
Pricing: Pricing and current availability could not be verified from an official listing.
Best for: Unverified image preview extension
ImagePreviewer could not be confidently verified as a current official browser extension from reliable sources. The listing should be treated as a legacy or placeholder entry unless the admin can confirm the active store URL, developer, supported browser, and permission model.
Pricing: No official pricing or active store listing was confidently verified.
Best for: Image and video preview on mouse hover
Hover Zoom+ is an open-source extension for enlarging images and videos when the pointer hovers over supported websites. It is not a full-page zoom tool, but it is a strong fit when the user wants quick media previews without opening every thumbnail or image link.
Pricing: The store listings describe it as free; verify current browser-store details before publishing.
Best for: Legacy image hover preview
ImgTip appears to be an old image-hover preview extension, but a current official listing could not be confidently verified. It should be handled as a legacy item until the admin confirms whether it still exists, which browser it supports, and whether it is safe to recommend.
Pricing: No reliable current pricing or official listing was found.
Best for: Unverified Firefox image preview add-on
The exact Firefox add-on behind this entry remains unclear. If the page needs an active Firefox image-preview option, the listing should be replaced with a confirmed add-on such as Image Link Previewer or another verified Mozilla Add-ons page with clear developer, permissions, and update history.
Pricing: Current pricing and availability could not be verified.
Best for: Legacy or unverified image zoom extension
ImageZoomer could not be confirmed as a current active extension from an official browser store. Historical user discussions mention it as an image zooming tool, but that is not enough for a safe alternatives listing. Replace or remove unless an official, maintained listing is found.
Pricing: No official current pricing or availability was found.
Best for: Legacy thumbnail hover image preview
Thumbnail Zoom appears to be the older base project related to Thumbnail Zoom Plus. It is best treated as a legacy Firefox image-preview add-on unless a current compatible listing is confirmed. Modern users should generally look at maintained alternatives such as Hover Zoom+ or Imagus Reborn.
Pricing: No current paid pricing was found; appears legacy.
Best for: Per-site custom zoom levels and page position settings
Custom Page Zoom lets users set separate zoom levels for individual websites and adjust X or Y page positions. It is relevant for people who want site-specific zoom control without relying only on browser defaults or a general zoom slider.
Pricing: No paid pricing was found on the official page or store listing reviewed.
Best for: Modern image and media hover preview
Imagus Reborn is a newer hover-preview extension for enlarging thumbnails and showing images or videos from links. It is not a page zoom utility, but it is a useful modern replacement candidate for legacy image-preview items such as Imagus, Thumbnail Zoom Plus, or ImgTip.
Pricing: No paid pricing was found on the store listings reviewed.
Best for: Simple Chrome image preview on hover
Image Hover Preview is a Chrome extension for showing enlarged image previews when hovering over images on web pages. It is a narrower alternative for users who care about image inspection rather than changing text size or overall page scale.
Pricing: No paid pricing was found on the Chrome Web Store listing reviewed.
Best for: Preview links without opening new tabs
Link Previewer is a Chrome extension that previews linked pages in a hover box. It is not a direct replacement for page zoom, but it may help users who originally wanted preview behavior from image or link-focused alternatives rather than full-page scaling.
Pricing: No paid pricing was found on the Chrome Web Store listing reviewed.
Best for: Better image viewing, zooming, panning, and gallery controls
Enhanced Image Viewer improves the way standalone images and galleries are viewed in Chrome, with controls such as zoom, pan, rotate, flip, fit-to-window, pixelate, and gallery viewing. It is relevant for users who need image viewing controls rather than webpage zoom.
Pricing: No paid pricing was found on the Chrome Web Store listing reviewed.
Best for: Toolbar toggle for Firefox text-only zoom mode
Toggle Zoom Text Only is a small Firefox add-on that provides a toolbar shortcut for Firefox’s built-in text-only zoom setting. It does not zoom pages by itself, but it is useful for users who want quick switching between normal zoom and text-only zoom behavior.
Pricing: No paid pricing was found on the Mozilla listing reviewed.
Best for: Advanced full-page and text-only zoom controls
Zoom Page WE is a strong direct alternative for users who want more control over web page zoom. It supports full-page zoom, text-only zoom, minimum font size, per-site or per-tab behavior, AutoFit fit-to-width zooming, and image scaling. It is a better match than image-preview extensions for accessibility-focused page resizing.
Pricing: No paid pricing was found on the official store listings reviewed.
Best for: Find larger or original image and video URLs
Image Max URL helps find larger or original versions of images and videos by using site-specific and generic URL rules. It is relevant when the user’s real need is media inspection or opening a higher-resolution image, not changing the whole page zoom level.
Pricing: No paid pricing was found; the project also accepts donations.
Best for: One-click webpage text enlargement
Font Size Increase is a focused accessibility extension from Stefan vd that enlarges webpage text without necessarily scaling images and videos. It is a practical alternative when the main issue is reading comfort rather than full-page zoom, media previews, or detailed per-site zoom management.
Pricing: The developer describes it as free and open source; verify current store details for each browser.
The best option depends on your workflow, platform, budget, and required features. Options currently listed include Imagus, Thumbnail Zoom Plus, Hover Zoom.
Yes. Free, freemium, or open-source options in this list include Imagus, Thumbnail Zoom Plus, Hover Zoom, Hover Zoom+, Thumbnail Zoom.
The alternatives in this list include options for Web, Firefox, Chrome, Brave, Edge, Opera, Vivaldi, depending on each product.
When reliable community signals are not available, the list should be read as a comparison set rather than a definitive ranking. Compare platform support, licensing, product details, and official provider information.
Alternative.tips is an independent alternatives directory. Product names, logos, pricing, features, and availability belong to their respective owners. Check the linked provider before downloading, subscribing, or purchasing.